GUYS I NEED HELP PLEASE

Sorry, it's kinda long but this is really bothering me.

Okay, so, my boyfriend is hella amazing in just about every way. He cares, he's compassionate, and he's super understanding about pretty much everything. There are only two downsides. He's really bad at texting back. Like, it's going on 48 hours since he last texted back. And the other is that he struggles to satisfy me sexually because he's afraid on my kinks. I don't mind too much, as it's still fun, but it leaves me kinda sexually frustrated. Now comes the problem. There's this other guy who's into me, and I've been into him to an extent since before my bf and I got together. Anyway, this guy's kinks are the counterparts to mine, and I really have the urge to sleep with the guy. KNOW THAT I WOULD NEVER CHEAT ON MY BF AND HE KNOWS ABOUT THE MUTUAL ATTRACTION BETWEEN THE TWO OF US. Now I would really love any advice you could give me. I really love my bf, and all I feel for the other guy is strictly sexual... please help me.