Dude, you support the guy if you want, but don't be the pot calling the kettle black.

Those aren't boundaries. Those are rules. Rules that were demanded upon AFTER the relationship started when NOTHING was said about the rules BEFORE they were in a relationship. He knew she did those things. Ergo, if it was a boundary, a true boundary (it's not but this is how boundaries work), he's still in the wrong for not upholding those boundaries. He was wrong to ever enter a relationship with her just to spring these cockamamie rules cause he's insecure and can't handle those feelings.

Boundaries are for you, to protect yourself. Rules are enacted on someone else. The purpose of rules is to control behavior, same as Don't Run in the Halls or Don't Drive Over the Speed Limit.

I strongly suggest you figure out the difference before you get into a relationship because this bullshit will get you kicked to the curb by any woman with any self respect at all. Stat.