Should I tell my bf?

Erin

I had dinner with a guy friend of mine which he knew about and we catched up with each other until 2am just talking about everything in life. Including sex I'm very open about it. It got to the point that we were talking about potentially being fwb with each other and cuddling. In the end nothing happened but the fact that I said that I'll be your fwb if I wasn't in a relationship is that cheating