What should i believe? :/?

So I told my friend devin tha I was bi-sexual. I told him cuz I would feel better and I had alittle crush on him. I'm a dude btw. My friend abby sed that he told her and I told him not to say a word. I asked him about it and he started to get all defensive. I don't wanna lose him as a friend but I just wanna know the truth. Shuld I believe him? Do u think he's lying? What shuld ido?