please if any wlw or bi ppl could give me advice

I’ve started dating a boy lately and it’s wonderful but also I feel like such a fake bisexual. while I know that’s not logical it feels like I no longer deserve a place in the lgbt community and don’t deserve to use that name as an identifier. I feel like im almost betraying other wlw but I really like this one and I have dated girls so I really am bi ok and I hate feeling like I have to validate my identity…. I just want to be able to love who I love without being rejected by or offending people idk