I think it is possibly to loose interest in the opposite sex if they are always hurting you in matters of the heart..... and remember that SEX is 90% in the MIND.

And Yes - it is possible that you might have been gay all along, but hid it well, only you can really decide that for sure - what were your early feelings toward sexuality and people?

Also please know that just because you find the opposite sex attractive or become aroused by them when you view them naked does not mean you are gay....... its just human nature and proof of how society has effected us sexually.