This would be completely unacceptable for me. Is it sex? No, but you do get a good physical sensation from that. You can also get emotional feelings from that. So it falls under the same umbrella as cheating for me.
If I had a gal that insisted on doing this, I'd say fine. You'll have all the time in the world to cuddle with your friend because I'm finding someone else.
I would consider it cheating and I am looking at it from the other perspective. I have lots of guy friends and would consider it cheating if I cuddled them while in a relationship. I would also consider it leading them on regardless of my relationship status and I don't want to do that. It's odd if you ask me. I don't know if you should worry or not but I understand being hurt by it.
I would definitely consider it cheating. Look at it this way, would you feel comfortable cuddling with a guy while you are in a relationship without feeling guilty? Cuddling is something that most people do when they have feelings for each other and enjoy being close, on more than a friend level. So yes, I would be worried.
Cuddling is cheating, You know that. When you hug to see a friend that's different but cuddling like watching a movie is cheating , Don't let that man tell you anything. A man will treat you the way you allow him to. Should you worry yes , He's in close contact with other women.
It's not cheating, but it depends on how long they are cuddling for and if they cuddle behind you back. If my boyfriend was cuddling someone for a good few minutes I'll definitely have a problem with that. If they are just good friends then it's OK but I'd still keep a good eye on him cause no offense to men but they aren't very trust worthy.