Unless you and the man who did that live on an island, surrounded by nature only, you will have problems from taking things that far. If you come to school or work with a black eye and a busted lip, you will raise suspicions, and if you keep doing that, you will ...

... basically, social functioning will be impaired if you keep doing that, and at some point somebody will sound an alarm of "domestic abuse"...

...also, think of how you will be "received" socially/in academic or occupational settings...

...will you win any interviews with that? No, you won't - I can tell you for sure. I once lost an interview for a job for which I was uniquely qualified and the only good reason I could see for losing it (especially given that I've usually won rather than lost interviews over the course of my life) was the horrible hand tremor I had while on Depakote (a medication for epilepsy/bipolar/migraine prevention). I had more tremor than my elderly grandmother had past her stroke - so it was clearly visible. Do people want to hire a candidate with such tremor? No, they don't. They may think that the tremor is from extreme alcoholism, if they are not too insightful. If they are insightful, they would realize that it was not from alcoholism since there was nothing else in my appearance, demeanor, voice, etc. to suggest extreme alcoholism, so they would conclude that it must have been from something else, but still not want to deal with whatever "something else" is!

In your case, people won't want to deal with you, either. They might want to help you get out of domestic abuse, or, they might want to stay clear of you altogether, but nobody would want to give you high impact job assignments while you show up with a black eye and a busted lip. Nobody would put you in client contact - that is for sure.

So this road towards the relief of emotional pain is very "costly" in terms of the need to give up all opportunities for academic/occupational advancement.

Harley's suggestion to, alternatively, seek therapy for emotional pain would not cause this kind of a social "reception" - therapy sessions are private and you do not need to tell anybody about them unless you want to (or, possibly, just tell your manager if you need to arrange for a weekly time out of the office for therapy, and, in that case, the manager would keep this information confidential).