Recently, if any of you remember, I made a post about finding it difficult to trust my girlfriend.

Good news is, I've really been improving that and feel like I can completely trust her to do her best in terms of her effort in the relationship.

The thing is, for some reason I still sometimes have a nagging thought that some event in the future is going to trigger a break up. I don't expect to marry this girl (even though I haven't ever been as into someone as her) because I know that in today's age, relationships don't work in the vast majority of cases. Although in terms of communication, arguing, being playful etc we are very good at the moment, I still know in the back of my mind that eventually the relationship will end, statistically speaking.

Yesterday she said "I love you. I will always be yours"
And I replied "How can you say that? You don't know what's going to happen in the future"
And she basically got very heartbroken because she thought that what I meant by saying that is that I can't see the relationship progressing etc. Which is fair enough - but I explained to her that It's not that I don't love her, it's just that I have a bad view on relationships lasting long because of a problem within me.

With some relief, she asked If I was maybe just insecure, and I admitted that I've given it a lot of thought...but at the end of the day, I honestly feel pretty comfortable in myself so told her "I don't think it's that". However, I did admit that I DO have little faith in relationships as a whole.

This view has been obtained through life experiences such as hearing tragic stories of close couples suddenly falling out of love, and also how I've seen so many girls flirt with me and other guys despite being in relationships.

My question is - my girlfriend now knows that I am in a sense afraid of losing her. And I don't feel bad, or weak admitting that for once in my life. I've realised that it's not because I'm afraid of being alone that I'm like this..It's literally because I don't want to lose her as a girlfriend, because I do love her.
She told me that now that she knows what my problem is, she feels so much closer to me and feels good knowing that I can depend on her the same way she depends on me when she needs help. Telling her also somehow made me feel less bad about feeling that way, to the point where I don 't really worry nearly as much about it now because I feel that she won't reject me for having weakness.

But I'm worried now that she might subconsciously lose respect for me, for knowing that I too have vulnerabillities. Even though she told me she felt very happy that she knows I can trust her and that we can depend on each other, I'm worried that ultimately I might have given this relationship a death sentence. Men should not feel weak, and should be completely emotionally dependent, as my great dad once told me.

Is it OKAY for us guys to open up to girlfriends if something is bothering us? Do we ever have that luxury?
Have I ruined her perception of me?
Have I put her in a place of power?
And assuming I continue being the same fun guy I always was with her, maintaining a sense of challenge, treating her right and trusting her - has anything changed for the worse?

I'm hoping that by being honest with her, I haven't ironically ruined everything.

you are right
girls actually lose respect for you if you admit a weakness or if you say to your gf that you are afraid of losing her.
u dont want them to think that u lost the skillz to get other women. western girls like it only if they know u can get another girl easily like a player/celeb duz. its different with asian girls

Good points
What I actually did say is that I fear the relationship will end, and that it doesn't have to do with her, it's just that I have a fear of the unknown. I told her straight up "I don't know how it would end. I really can't imagine you going for another guy, and I know you love me. Same goes with me. I guess I'm afraid that, for whatever unknown event, things won't be the same."

To me, that translates to "I'm afraid of losing you. Not because I'm not good enough, or because you're not good enough, but because of a weakness within myself that I just have a negative view on relationships."

Look around you - how many guys in ltr's (around the world) do you know never have concerns/show sincerity? I think it's an unrealistic ambition to make ourselves perfect and completely unphazed by anything. Of course I can repeat in my head "If I break up with his girl, who cares! I can easily get another" and yes, that is true for most guys. But to me that's very besides the point. Getting another girl is easy...anybody can do it. Keeping one requires work.

Would something like that work on an east asian girl??