I am bisexual

So I’ve recently realised that I’m bisexual and I’m not sure how I feel about it. I’m in a long term relationship (6 years) and during this time I’ve realised that I’m bisexual. I find it very strange that only now I’ve realised it. I told my partner & he’s fine with it, he said he kind of knew anyway 😂 I check girls out too much to be straight.

I always thought I was a bit gay but never 100% I liked a girl when I was 12/13 but never acted on it and then she left school and that was that. Never liked any other girls until I was about 19/20 and I found myself looking at girls, watching lesbian porn etc.. is there any point of ‘coming out’ I’m expecting to be with my partner for the rest of my life so it’s not like I’ll be bringing a girl home to my mum anytime.

I don’t even know what I’m asking here, I’m just confused 😂