Wait so the new (and probably now main) girl offered to synchronize with the MC knowing that she was forbidden from doing so and most people would legit DIE if they did so with her?! She even went as far as to lie to the guy who clearly knew nothing about magic or her reputation. That is so many times worse than a tsundere sword master girlfriend that showers you with free stuff and is a little harsh with words. I mean she did get really apologetic when he said he was leaving. I feel like they could have easily sat down and talked things through; she at least seemed to honestly love him. You can’t not like a situation and never have a serious talk about it and then just run away from it. That is so many kinds of unhealthy, wrong, and inappropriate (and is not the “confident change” the author portrays it as, but pure cowardice). The MC wasn’t exactly being physically abused (domestic violence) and the mental abuse went as far as some insults slung his way. I’d understand if we were told he tried talking it out, but his first move is just to leave? If this has been a problem for a while at least bring it up. It seems like that would have solved/prevented everything seeing as she both acknowledged (and HE acknowledged) that how she acted was due to the stress of her new position (the best thing to do for your girlfriend then would be to say “okay, I get that you’re stressed, but you can’t take it out on me. How bout we have some fun when works over? Or sex. Sex is good at relieving stress” not “I’m going to ask you to stop, you should be able to read my mind, but you didn’t so I’m out”) and she apologized the first time (well I’m assuming this is the first time since the author flew through their relationship so quickly) he adamantly brought up the issue. I really can’t NOT, see the MC as in the wrong in this situation. Unless he just straight up never held any romantic feelings for her and was forced into the relationship. Communication is one of the biggest things in literally any relationship (romantic or not). You can’t expect someone to know they’re acting abusively or hurting your self esteem or just doing anything you don’t like, until you tell them. Certain close relationships live and breathe off of insulting each other. I’d get it if the mc never loved her (which again we got nothing about their relationship so I guess that’s possible), but otherwise he didn’t even try and make that work. When you finally gather up the courage your first response to problem (if you actually care about fixing the problem) can’t just be to run away; if you don’t care about fixing it (or in this case the other person) then sure. But I mean, if you know your girlfriend is having work related stress problems and is venting on you because of that, there are much better solutions than leaving her for that reason (again unless you just don’t care about her which is valid). I mean, I kinda feel for her. Now she’s more or less all alone and the cause of her stress is still there, but the person she looked to to lessen it (albeit in a manner that (probably unknowingly) hurt him) is now gone. For her to change that much from childhood her new positions and responsibilities had to be pretty heavy on her shoulders and now that’s only going to get worse.