AITA for liking my bf less for his haircut?

I (F20) am in a LDR college relationship with my partner (M22) of about 3 months now (although we’ve known each other for longer). When we first got together on my college campus, he was an ideal guy. He was super flirtatious, complimentary, funny, sweet, super into me, okay in bed, ambitious with a job, and although he didn’t look anything like my previous serious partners he was very good looking in a different font - kinda tall, green eyes, and this really curly brown-blonde hair that was really soft and framed his face beautifully. I liked him a lot too, and after our first date we became official and had a pretty good and uneventful first month even after I moved back home.

We got into an argument about a trip we were trying to coordinate because we wanted to see each other before the end of the summer, and admittedly neither of us handled this argument well. I have some not insignificant mental illness and have lost access to my medication so I said some things that were very hurtful after he said and did some things that were very hurtful to me. Despite this, we didn’t break up and continued with our relationship and worked on communication and ways to bond/be intimate so we can be stronger. However, since then arguments have been frequent (although never as bad as the first one) and he’s seemed less engaged.

Fast forward a bit and he starts talking about how he wants to get a haircut for his bday but his fav barber has moved away and he’s worried about messing the cut up himself because of his curls, and shortly after he gets the haircut from someone who means a lot to him. Guys, this haircut is REALLY really bad. The barber played in his head. It makes him go from a solid 8+ to a 4. Mutuals who also know him have said it looks bad too, but he likes it and the barber who did it means a lot to him so I just kinda nodded and smiled without outright saying I like it so I wouldn’t ruin his bday or feel like a liar.

But every day it eats me alive. It feels like a physical reminder to add to the emotional distance between us that he’s no longer the guy I fell for. I don’t like to FT or get selfies from him anymore, I don’t care much when he doesn’t text me for a while, and I’ve stopped trying to work on our emotional intimacy together since he’s been so inconsistent with it.

Is this a reasonable reaction to this haircut given everything I’ve already brought up and just a natural leveling off of a failing relationship, or am I just being shallow and looking for a reason to take the easy way out of dating him?

Tl;dr: AITA for feeling like my partner’s terrible haircut is a manifestation of him not being the man I fell for anymore?