I Was Gay For Years But Now I Want To Be With Women Only?!

hi.. lemme explain this as best i can. i am (..or was) a gay man - my first sexual experiences as teenager were with other boys my age and now i,m in my late 20s and the idea of having relations with men does not "do it" anymore. ive since experimented with women and i think this is for me now.. but all my previous relationships have been with men. CONFUSED!