I’m stunned by what my boyfriend did after finding a burglar in our home.

Sounds fine to me. Do jungle stuff, jungle rules apply. Meting out some non-judicial justice is often the right answer. I’ve beaten up more than few people in my life (and been beaten up myself a lot too), and I doubt this guy enjoyed it. I never have. It just felt like something I had to do, a boring but necessary chore. Bet he’s the same too. Some people are just comfortable with violence and recognize its uses.

Note: I’ve never beaten up a woman or anyone weaker than me (at least who didn’t violently attack me first) and never will.

Sounds like a decent guy to me.