Why would a taken guy send me pictures and videos of him with other girl?

Anonymous
like he has a whole girlfriend and about 4 months or so back i found out and immediately stopped talking to him but he kept trying to get a reaction out of me by sending me nsfw stuff of himself i ignored and he is now sending me almost daily at times twice a day clips of him having some sad sex with this random woman. at this point i'm not even opening his texts, so it stays on delivered until he sends another and so on. i won't block him because he will get a different number and do the same thing but like he's 26 or something doesn't he get tired of doing that and getting no replies? i don't even see what he's sending now so what's the point on keep trying when he has been on delivered for almost a month now.

so if anyone could break down this behavior and try to help me understand what is he trying to do i'd very much appreciate it
Updates
1 y
ended up blocking him last night and today already got calls from 3 different numbers like what does he want 🙃
Why would a taken guy send me pictures and videos of him with other girl?
2 Opinion