If there is the possibility of a partner cheating on you, visit your doctor and have some tests done.You don't want their final 'gift' to you to be a nasty little disease. (Hopefully people will know what I'm on about, without me triggering the wrath of the BP censors.)

Man child, she dodged a bullet, pity the next poor woman he pulls his immaturity on. Seems he was incapable of taking responsibility and accountability for his own actions, was jealous of her earning capacity over him, and couldn't stand not being the 'power' in the relationship. This guy will never want a 50/50 relationship with someone, his fragile ego will always require him to be 'top dog' and able to abuse someone so he can feel more powerful. Get a cat, less of a headache than a man and gives you more love, also won't care what darn color the wall is painted.

She did nothing wrong. He was jealous because she had everything she wanted. She turned down a doctoral program and has a job she loves that pays well while he is in a lesser position with a higher degree. Pure jealousy. So glad she let him go without a fight. So wasn't worth it.

Are you sure that you weren't dating an incel?

He sounds unhinged.

KawiZed has a point; it sounds like there may be another reason OP'S fiançé wanted to break up with her. Something in the area of 36/24/36.

Honestly sounds like the guy is having a mental breakdown. There is absolutely nothing OP can do, so she needs to get on with her life. It is sad, but he is using her as his punching bag, verbally, at this point. Dodged a bullet!

Narcissistic bully-victim yoyo cráp is so last year. The BF gots to go... far away.

I would rather be single rather than living with this dude. He seems to have a lot of issues.

He’s cheating but wants you to do the pick me dance. You were supposed to beg him not to leave you. Good riddance.

Yeah, this is about him finally getting his PhD and now suddenly not having any direction in life or new goals, but also being severely disappointed with the results of achieving his previous life aspiration. He did all of that work and wound up with zero fanfare and a crappy job he can't even live off of. And it's easier to shift all of that onto the LW than face himself.

Ya me thinks there is a third party out there somewhere and he needs to deflect so as to not have to take any responsibility for his actions. This has all the markings of something on the side...talk to your landlord about breaking the lease. I doubt he would want to keep both of u in the apartment with the state of your relationship as the a crime y could come back to bite him. Regardless, have the conversation with him sooner rather than later and perhaps with a parental unit present. He sounds unstable. This is one of those posts that warrants an update. Good luck!

Poor little educated idiot is jealous of her making more than he does, some guys just can't stand it. His friends won't let him trash her, tells you something about him. I'm wondering if he was cheating on her and won't admit it. If he wanted to go somewhere else for his PhD program they could have talked about it but oh no, she ruined his life... Ummm HOW???

Okay.

NTA & Wow! Did you not read the warning on the crockpot abt the risk of relationship breakup? I can fully relate: I hate our broom, husband loves it - he bought it. For a few days I helped a neighbor with some household things when she was just home from the hospital - & she has the same broom! Sweeping up the dry food her 5 cats had strewn all over the kitchen was agony. It turns out my brother has it too - doesn't use it, but has it. Scariest of all, MIL has it. I'm being stalked & terrorized by this hideous thing but the difference between me & FBF (former boyfriend) is that I don't keep it a secret that I hate this thing, am waiting to explode at some future date - instead, lots of profanity every time I have to use it. But how were you (OP) to know that all those "terrible" things you did in your relationship (that you didn't even know abt, such as the possibility of a position in another country, or that HE had decided your higher income meant you were controlling his spending - &, uh, the criticism of your choosing not to go for a further degree but to enter the workforce - REALLY? That should be any of his concern? If so, or if he thought so, he could have brought up the issue, it could have been discussed & maybe resolved in some way) were being tucked away & allowed to fester? And he's angry that OP's response to "I want to break up" (in my case, "I think you should move out") is "Okay"? That's the only response that shows any self-respect. Did he want begging, pleading, tears, groveling, apologising, promising, abasing? OP seems to have her life & career options figured out - hoping FBF gets some help, even if at 1st it's just something to calm him down. He wasn't always like this or OP wouldn't have been with him.(He's probably also angry that she hadn't already gotten a cat even tho he's allergic.)

So she can't kick him out, she can still move out herself.