I have seen it secondhand. A friend’s sister had been beaten up by her lesbian significant other. She went into hiding. It had been going on for some time.
I’ve read up on things like this. The abuse is addictive for the abuser and they always end up killing the object of their ‘love’.
I’ve read many times from people with experience in LE and related professions that homosexuals are much more likely to commit domestic assault and are more violent than normal people in that regard.
Plus many other regards.