holy_secret said:
No, but seriously, I can relate.
I am myself a lesbian, but I've previously had a boyfriend and I thought that I was bisexual. I ran into a lot of "it's just a phase" and "lol, no" when I announced that I thought I was bisexual, and I think that discouragement was part of why it took me so long to realise/accept that guys do absolutely nothing for me when it comes to sexual attraction and I do not have any drive at all to be with guys(though I do get along with them a lot, lot more than I do with girls which is frustrating to say the least).
People don't seem to realise that
attraction is very fluid. Sexuality, to me, is what you're
mainly attracted to and there may be exceptions in some cases, although of course some may never have any exceptions, but that doesn't mean that you're not straight/gay/bi/whatever, it just means you're human. Ever heard of the Kinsey scale? It looks something like this:
If I were to place myself on that scale, I would probably be a 5 ½ because mentally/emotionally get along better with guys - but bisexual is not sufficiently accurate because I, as mentioned, have no desire to be with guys and I'll just be giving false hope to people and feeling bad myself because I'm not being honest.
I've gone way too much into this now...
tl;dr Bisexuality is just as real as all the other sexualities. Stupid people discourage you from liking whatever you want/do and there's no need to listen to them. In the end it's only their problem if they make it so themselves.