Idk what to do

I’m in a super amazing relationship with my boyfriend of almost 8 months. I’m Pan and where I live it is so hard to find bi, lebian, or Pan girls. I had one girl that I used to sleep with when I was single. But she was also only curious and allowed only me (as a girl) to have sex with her? Anyway, I miss having sex with girls and I really want to but I have no idea what to do. I love my bf so much and I feel terrible but I really wanna have sex with a girl again.

-what do I do?

-do I tell my bf?