I am out to almost everyone as bisexual. I love girls. And yeah, I do find a few certain guys attractive. But after watching some of the couples at my school, accidentally coming across some straight porn on tumblr (NEVER AGAIN), realizing literally every experience I've ever had has been with a girl, and just trying to picture myself in a relationship with a guy in general... It just doesn't feel right and I don't think I could ever see that happening. I'm pretty sure I'm gay. My friends have been really supportive, don't get me wrong. I even told them I have a preference for girls, and they kind of just shrugged it off. It's just that it seems like my attraction to guys is somehow important to them. Maybe it's because most of them are straight girls, and I get that it's kind of a bonding thing to talk about boys. Like this one time my friend told me that this guy in one of our classes liked me, and I responded that he seemed nice but I really couldn't see myself dating a guy. To which she replied "But you're bi. I think you should give him a chance." And today we were talking about who would make a good couple and when they got to me I couldn't help but flinch a little when they came up with a guy's name. I'm just not really sure what to tell them, or if I should even say anything at all?
If they accepted you as bisexual, they would probably accept you as lesbian. If you don't want to date guys, then they shouldn't be trying to get you to. Just be patient, as they will probably have questions about why you didn't know before, just explain how confusing figuring things out can be. Good luck!
Seems to me a lot of straight people like things black and white, so bent is bent and they will chalk any label changes up to whatever their ideology prescribes. I really don't think I will ever want a relationship with a woman again. I'm convinced that if I wasn't in denial about liking men I would never have even dated my ex wife. but I'm still attracted to some women while other women who are smoking hot do nothing for me. I call myself bi here because the word means something to you guys, and my ehhem* fantasy life is certainly bisexual. but I know from experience that a lot of straight people think of a bisexual as someone who's undecided, so I feel saying I'm gay is easier sometimes because its cut and dry and people like that. If people ask something more specific, I'm happy to expand their definition of who I am but I feel no obligation to sum up my sexuality in a single word
I think if you continue to reject guys and date girls, your friends will figure it out. I initially came out as bi, but months later, after dating multiple guys and showing no interest whatsoever in women, my friends have figured it out. I didn't have to tell them I am actually gay. They just knew.
i think it might be your friends trying to help you. If they don't know you only like girls then they don't know to suggest only girls. Also they may not want to assume. So they are trying to give you options on both sides. They think you like both so they want to offer you both. This might be why you friends sounded confused when she was talking about a boy and you tried to brush it off. You have to remember that the people around you go off your signals. So if you're still confused then they probably will be too.
It should be easy since you kinda already came out. Like Grey Wanderer said. They will accept you most likely! Best of Luck!