So I usually only read reddit stories or listen to smosh reddit, but I feel really conflicted on what do to in this situation.

Some Info about me, I'm a 22 year old in NZ, saving for uni, My parents, family in general growing up were awful, partly on account of me being a 'he-she dyke'. So you can imagine my eagerness to move out and get on with my life. I planned, saved and eventually moved to a new city, 10 hours away. I chose this fully furnished house with a roommate (M/50) because the place was great, clean and he was friendly enough.

My roommate who I'll call Tim, not only seemed sweet, but pulled me in with his story. He had two failed marriages with four older kids, until he met his last wife, who was the one. They were to together for years until her chronic illnesses kept getting worse, leading to her passing 2 years ago. While grieving her passing he also badly injured his knee and now needs an op to fix it, so he can work again. His backstory and just how he's been treating me, had absolutely no red flags and he seemed great.

He had this friend he met shortly after his wife passed, named "Kate" (F/40). She supported him with the lose of his wife and he was helping her after her parent passed earlier this year. Kate would pop in every now and then, and they'd hang out, it was honestly cute. Tim mentioned to me that he developed feelings for her, but they discussed it, took a break and moved on as friends.

Now here's the shitstorm that took place last week. Kate comes to visit on Wednesday, it's all good. Tim says she'll probably come back and stay the night on Thursday. All's going well, I'm in my room playing games and they order food in to share. It's evening at this point and I just start hearing screaming through my closed door and headphones. After realizing, they weren't happy, excited screams (they laugh pretty loud) I got concerned. I take one of my headphones off and eavesdrop a bit to see if things are getting violent. I make out "bathroom", "naked" and "you need help". I put two and two together and think Tim accidently walked in on her changing or something. An honest mistake. She ends up leaving and Tim comes and fills me in on what's happened.

Kate was changing clothes and tampons in the bathroom, when she saw a hand though the window. She accuses Tim of recording her, while he says he was in the other room. My naively optimistic ass thinks their both right, Kate saw something or someone else and Tim was chilling in the other room. This is all some big misunderstanding that'll blow over. After he tells me, I straight up ask him, "It wasn't you though, right?", he denies it saying it must of been a neighbor or something. I see this as reasonable and believe him, because I honestly couldn't see him doing something like that. We make plans to buy security cameras.

I'm a bit shaken up by the screaming, but things go back to normal in the house, with Kate gone. Saturday rolls around, I'm making myself brunch when Tim comes into the lounge/kitchen, stands around for while, before sitting on a stool. I'm waiting for the kettle to boil when Tim says " OP I need to tell you something", I nod for him to go ahead, causal as ever. " It WAS me", "The other night, I was recording her". When I tell you my heart dropped to ass so quick and my hands started to shake. He then goes on about how he'll confess to Kate and apologize. How he's just infatuated and in love with her and he didn't send it to anyone, it was just for his "personal use" or whatever the fuck.

I have been trying to tough it out and believe he's getting the help he needs, from therapy he's since started attending. But I just can't shake the fear I have living here now, even though I'm a masculine lesbian, who I don't think he's into. I feel so gross when he's home. I want to move out as soon as and have a viewing this week. Thing is, his op for his knee is next week and I promised to take him and pick him up. I also agreed to cook for him during his recovery and help him get around. Would I be the asshole if I moved and he no longer had someone to take care of him, cause I feel like I would be.