While her girls are complaining about their relationships, she'll remember you

I would most definitely prefer my ass remain un-slapped.

You seem like fun

Yes yes, I'm now unfun because I don't like having my ass slapped. What a prude I am.

It’s just playful. It’s not like any fifty shades shit

And? That makes little difference if I want nothing to do with it. If someone I'm with decides "oh it's just playful" knowing full well I want my ass to be left un-slapped and continue with such a course of action in future, they will find themselves without a girlfriend.

I am surprised some girls don't like their ass slapped by bfs. I'm equally surprised that it's grounds for a break up.

Surprised some people have different opinions on something? Also it's not a "oh I'm breaking up with you because you like ass slapping" it's a "I'm breaking up with you because you refuse to respect me enough to not slap my ass after being told I don't enjoy that and am uncomfortable with it being done."

Just surprised it's an issue.

I don't like it and I'm uncomfortable with it. It doesn't particularly matter what it is. If your SO refuses to stop doing something in regards to you a break up is necessary.

If you don't mind saying it, why does it make you uncomfortable?

I would prefer not to.

No ass just bone, so when slapped it hurts. Just a guess.

I said I was uncomfortable with it not that it was painful.

If she doesn't like it, it doesn't matter why. It would matter if her partner did it after she's asked them not to.

maybe replace her butt with your own

Slap ya own ass as I walk out the door? I'd just be confused all night.

that's the point, to make you think

The slapping of ass isn't something that's inherently bad. There are quite a few people to which such a thing is good, something I'll never understand myself. It's just a thing of is she ok with it. On others 1. Yea he shouldn't need someone to tell him not to make non-joking jealous comments. 2. The whole "think about you all night" thing is supposed to be a sorta "shell be thinking about how much better her relationship is compared to the complaining that's being done" which could be a bad thing in the more bad situations people can be in.

Yeah maybe she likes being slapped idk but I don't think it sounds like a mature relationship anyway, just my opinion

Yea the other 2 bits definitely are bad signs.