<human>: Could you distill the essence of the text into 1-3 sentences?

I'll start with the FWB. We met about a year ago at a party, we had sex that night and have been having sex regularly (about twice a week) ever since. During that time we've become pretty good friends, we hang out a lot and neither of us have had any romantic feelings.

The new guy: so about three weeks ago I met a guy from tinder, we've been on four dates since and had sex on the second date. I'm not in love with the guy or anything but he seems really awesome and I could definitely see it going somewhere. 

So my question is basically what should I do about my FWB? We've been continuing to hooked up as I've been on multiple dates before that didn't work out and I'm clearly not exclusive with the tinder guy, but regularly hooking up with someone on the side now that things seem promising feels a little "iffy." But if I'm going to be having sex with other people, doesn't it make sense to be with someone I know and is safe? I guess I'm just asking at what point do I stop hooking up with my FWB.

Also, even if we stop hooking up, and can't see us not being friends. We run in a lot of the same circles and frankly I just like hanging out with him. At what point should I tell the new guy about my former FWB status?
<bot>: have been on a few dates with a guy I think I like, unsure whether or not to stop hooking up with long term FWB