Friends with benefits

This is my first time to ever have a fwb. The thing is sometimes it feels like more. He calls me names like baby doll, sweetheart, and honey. He tells me he loves me, I know I love him too. We feel so at ease together. He says he doesn’t want to be with anyone else and neither do I. He doesn’t think he could ever go thru with getting married again. But we’ve both had horrible experiences with marriage. I was mentally and physically abused, he was cheated on. He’s made me feel so much better about myself. Neither of us want to take it into a real relationship. We talk constantly. I don’t know I guess my point is I’m not sure what to think. I’ve never had a fwb so I don’t know what to expect. But I didn’t think fwb was like this. What was your experience as fwb, any comments are welcome.