What do you call men who put masks on to abuse women?

I know this girl and I have known her for a long time... I was talking to her and she mentioned that she has put her self in bad situations where she regretted it. Then it came to this guy who gave her a birthday gift and took her out for a day and would comment on he/her social media. But since they went on that day out he and she have not even been on each other's social media... actually no longer friends... I'm thinking that he sexually assaulted her or abused her in some way and was playing her to get her alone or something... who are these men?

What do you call men who put masks on to abuse women?
Post Opinion