Bi girl with bf

Was wondering if anyone felt this way.

I like girls, i’ve always had experiences with girls since childhood but never have went beyond that. My bf knows but has a boundary that if he’s not included, there would be no me being with other girls. This is so bothersome to me because I don’t want him involved with other woman. I know this sounds selfish and it makes me sad because i’m genuinely not trying to be selfish but i just don’t like the thought of him being around another woman sexually.

Also to add, it’s not a need of mine, i just had a conversation with him about it but it upsets me because what if im always wondering what it would be like if i did entertain my thoughts with woman along with my relationship. He has his boundaries and I respect it.