You are going have to decide, do you want a 100% monogamous relationship or do you want to be part of a swinging couple? I don’t think he means that you need more experience just different experience like try swinging, another woman, group, s&m,etc. Try whatever and if you don’t like it, then don’t do it. You are in control of you and what you are comfortable with.
Are you sure that you want to be in a committed relationship or is this what you are used to? He probably doesn’t associate sex with love and it sounds like you do. So just be sure, that your feelings for him are genuine, would you like him if you didn’t have any physical contact? Are there any other redeeming qualities that would make you want to be him long term? maybe you are just feeling attached because you enjoy the sex so much. Whichever,
If this guy can’t commit then move on to someone who can. It hard when you care about them and they are so damn good in bed but be smart, don’t get get yourself hurt. Being with the wrong guy, will stop you from finding the right guy.
Contrary to popular belief, you can find a man that truly loves you and can please you sexually beyond your imagination but at the same time be your best friend, I did it, so can you:)