how to stop my roommate from constantly jacking off

im a freshman living in one of the triple rooms with a bunk bed and my roommate will not stop whacking off. I guess he doesn't realize I'm a light sleeper and I can literally feel the entire bedframe creaking around for 10 minutes every night, and the little tinny porn audio from his phone speaker (he seems to think that if he has it on the lowest volume we won't be able to hear). on top of that he doesn't actually clean up he just ejacs into his boxers and his weighted blanket just reeks of semen constantly. it fills the whole room, but he's so used to it that he doesn't realize. This is every single day, I've been tallying it on the wall with a glitter gel pen that this frigid bitch from my hometown gave me before she went to boston university. I was hoping he'd notice the tally marks and it would be a subtle reminder for him, but I don't think he has. I guess he just walks around in a raging concupiscent fog all day. I can't really tell the 3rd guy since he's an international student from Sri Lanka and his English is so perfect that it creeps me out. It's like talking to chatgpt and I have no clue what he would say if I broached the subject of masturbation. also bringing it up now would be weird since it'd imply I was happily tolerating the nightly thrashing above my bed for several months. so I really need someone to tell me how to get this across. I've been staying out of the dorm for as long as possible but he seems to have some sort of circadian estrus period where he can only jack off after I've gotten settled in to sleep. please just help me.