If your 'friends' are causing issues between you & your boyfriend, it is time to make a decision. What do you actually want? A committed relationship? Or to be social, & have 'friends?'

It seems pretty obvious to me you want friends, so you need to tell the BF that ASAP.

(IMO, men & women can't ever be 'just friends.' Like others have said, it's not fair to give that time & energy to someone not your significant other, & even if the SO is ok w it, the 'friend' wants to bang you, so not really fair to them either.)