<human>: Give me a shortened version of the text

You and your significant other are chilling. You wanna give them a back rub, and you say, "Hey take your [over shirt] off so I can rub your back."

They get pissed and condescendingly say, "Don't fucking tell me what to do, you need to ask me instead of commanding me."

WHAT DO GUYS? My friend's new boyfriend did this at my house tonight and I told him to not talk to my friend like that when he's in my house. He literally got RED FACED and was squeezing his fists together when I called him out.

When she and I were alone I asked if he was always like that: she said yes and got kind of quiet and didn't answer any other questions about anything else. Now I'm worried, as he was fucking weird the first time I met him (super quiet, didn't say thanks to the waiter, didn't talk to anyone but her, looked super pissed off the whole time) but she told me he was super stressed so I SORTA let it go, and now the second time I meet him he's an asshole. My friend is recently out of a 10 year marriage and super friendly but inexperienced with dating (her ex wasn't an asshole, they got married super young and their lives took totally different turns... very amicable, I'm definitely going to tell him what's up but he's out of the country.)

How do I approach my friend about this guy? She told me she was going to break up with him before, but they got back together. She and I hang out at least once a week (about the same we used to) and she's been way more talkative lately but sort of in a sad way -- looking for approval, saying she feels ugly, a total 180 from my happy friend. We don't talk about her relationship so I figured it was going well (nothing to complain about), but now that I see how he reacted to her in front of a friend (in my fucking house) I am super duper worried.
<bot>: Friend's boyfriend was an asshole in front of her/me, I'm pretty sure he's a piece of shit and emotionally abusing her... what the hell do I do?