I personally feel that both of you need to be who you are inside with out being influenced by the other ones feelings.... he is gay and cannot become straight just for you and you are who you are and should not become some one you are not just to ensure that he feels safe from his own self.

I had a friend that was gay (R.I.P) and while I was the one female he emotionally bonded to in his teenage & adult years he knew that we could never be more than friends... and not because he was gay, for I did not know he was gay when he first liked me, but because I just did not connect with him in a way that could give us more than friendship... but he never stopped caring for me.

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To answer you other question: "why this why he is gay"

My friend that was gay told me that he feels that he turned to males and later made gay a way of life for him due to the fact that he was molested by a man several times as a child, that his own father was never around emotionally or physically and that his mother was to over bearing for him love another female.

So yes..... being molested as a male child by a man can have a strong influence on a boy as he grows up.