Originally posted by shrekho:
I guess a majority of people have to travel for their work, so I guess it
will be fine if I post something out of my chest here. I am not trying to whine
or sulk, but just need advice and share some experiences with others.
My job requires me to fly around at least once a month, sometimes for few
days, while others are weeks.
My GF and I have been together for 3 years now, but somehow, every time
I come back from overseas, she starts nonsense and become attention seeking. She is just so unhappy on my trips overseas to support, that it now has become a burden and mental issue for me.
Cos while overseas, on top of work pressure, I have to face multiple crossroads which will put my relationship with my GF will come to an end. These are tempting and attractive, but I always overcome the mental and physical desire, because I know someone in Sg is waiting for me.
I feel so messy and not stable.... Esp when she starts to give me
nonsense and try to get attention from me through ridiculous actions.
I used to be able to bear with it, but now, I am weary and start to feel
feeble with her actions. I no longer want to pacify not tolerate her actions
anymore, yet I don't want to hurt her..... I tried telling her to be sensible,
but it just makes matters worst, she cries.......
Any kind soul can teach me what to do? Or, what should I do?

There are several issues to discern here, but the essence of my post can be summarised into one sentence:
Love is not about looking at each other; but looking together at one collective direction.When a couple shares a parallel view of their individual definition of love, chances are, you will find conflicts with regards to choice, perception and view of life & relationship because in a parallel line, the lines will never meet at point X.
This is not an issue of what you want her to know because that depends largely on the sort of wisdom she has. To employ dialogue and communication to alter her fundamental belief about love is as challenging as changing one's personality.
To understand your plight, we have to review the basic - our needs.
21 years old girl and a 26 years old guy: surely the age difference would suggest proportionate widening of expectation, due to segmenting of separate phases in our life. You can't expect a woman of her age to perceive love and relationship the way you do?
The theory of love needs are often logical to self, but illogical to others. Woman will never understand man's fascination about blowjob and boobs. And the problem is that they don't need to - they only need to know that it exist. Similarly, you don't need to understand why she is giving you trash because you will probably not know anyway - you just have to know the this is the woman you accepted as girlfriend three years back... this is your choice. (CloUdiSm first law of Love)

Originally posted by shrekho:
I have shown her my finances on house and future, including investing in stocks
and bonds and cpf so that we can be easy with the house later. I do finance
planning for house and marriage, plus this year I invested some money for the
future baby.

I wholeheartedly agree that you are a responsible guy.
But your insecured girlfriend, being your woman, probably felt neglected due to your lack of presence in the relationship. Such short-term 'needs' might be 'nonsensical', but certainly they do qualify as a need, don't they? (As mentioned in the above paragraph).
Some woman loves a man like you and they don't mind enduring that emotional sacrifice, knowing that whatever you are doing right now, it's for your future together and they so love a responsible man like yourself. But there are also a group of woman who cherish and appreciate spending quality time with their other half, much more than you telling them you are going to spent the next year working hard (likely to be at the expense of your relationship) for a better home (CloUdiSm Elemental theory - Earth vs Water)
And I can tell you they are both equally right - just that from where they are standing, they are looking at love from different angles.
I remember an old story in the papers, where this man worked his guts out because he always felt the importance of finance and the ability to provide for the family. Then he read, also in the papers, about the story of this man who regretted not showing affection to his significant other when she was alive and now he can only spent his time at her grave.
Inspired by this article, he drove to Malaysia, with a bouquet of flower - wanting to give his wife a surprise and he end up getting a bigger surprise.
He gave his wife the flower and told her that he loves her. She cried incessantly, not only just because she was touched by his action, but also, if he has arrive an hour later, she would have committed suicide because she thought that her husband no longer loved her.

***

Love and career are often mutually exclusive. The one with the high flying career might not have good relationship, while the one with the humble job might have very fulfilling ones.
Everything depends on where you place your priority.
In love, every mote of individualism devours away mutual strength in a relationship. This is decided by freewill... by our choice in life. If you have decided that your career is the most important aspect of your life currently and you are able to do away with your relationship to advance further - you will probably do it.
This is your choice - your woman, having separate sets of needs, would probably have to go.
When you try hanging on both realms, frustration builds up from parallel views that would never meet and eventually things become sour and will implode unsightly.
Either you truly convince her to look from where you are looking or you lower yourself to view from her perception because ultimately:
Love is not about looking at each other; but looking together at one collective direction. 
Cheers