My boyfriends opinions (rant) 🙄😞

So long story short I think I'm bisexual, I've always questioned my sexuality but lately it's on my mind every single day. I have a boyfriend who I've been with for a year and a half and he doesn't exactly have the most 'positive' opinion on bisexual people. He's told me that he respects people of all sexualities but he thinks someone who claims to be bisexual is still just 'confused' or doesn't want to accept the reality that they are gay/lesbian, or they just want to experiment with the opposite sex. He's not a bad person; his family have the same opinions so I guess he's been brought up to think this way and I know I couldn't come out to him or anyone else because what if he thought I was actually a lesbian and was using him to cover up or something? I'm not particularly bothered that I will never get to have a relationship with a girl because I want to be with him forever, but it's just annoying that I can't tell him.