I am confused. Help?

Okay so I've been wondering for a while now about this and I just need some answers that would help me to understand what's going on I googled my questions and nothing really gave me a real answer until I looked up here and i though, why not share my questions with you guys!

When I was younger, I used to watch porn quite a bit and at that time I didn't really realize (up till now) that I get turned on to watching Gay porn.. The other i was reminiscing and i remembered this and i thought hey, why did that turn me on?? So the other day, i googled porn (i haven't watched porn in like 4 years?) and watched gay porn and to my surprise. I got turned on.. WHY IS THAT? I have no romantic interest in men at all, I dont want to sleep with a man... If possible, I dont want to have anything to do with a man at all... But why is it that i find gay porn so arousing?

I do admit, I flirt with guys for fun.. I like the attention.. But at the end of the day, i want a woman in my arms..

I just newly came out to my sister (finallly after telling a bunch of ppl i could trust before her.. The other day i got totally wasted and just told her everything and cried my eyeballs out because i felt so guilty for telling other ppl before telling her hahaha) and she was cool about it.. A little to cool actually.. I kinda feel like she either doesn't believe me (because she knows i sometimes flirt with guys) or she's in denial.. anyways, that's another question.. Or maybe I should give her some time? Because I've gotten good support from the ppl i told and they reacted quite good about it and idk I feel like my sister is being weird.. She didnt even ask me anything at all.. Like how did i find out and bla bla bla, the normal questions ppl would ask if you came out to them..

Anyways, that's all that I can think of right now I probably have more to ask, but I just think of any more right now! (!)(!)(!)(!)(!)