I (30F) find my instructor (~40M) repulsive after knowing that he's into me

I joined this Thai boxing class end of last year, my friend introduced me there. The instructor is a little awkward but overall nice and friendly. He would invite me to group dinner (with other students), and he was patient with me during classes. He is also a personal trainer, so he became also my PT at the gym half a year later.

In the past two months, I started to feel a bit uncomfortable around him. I found him a bit touchy during gym sessions, he would touch my muscles to feel the movement quite often, and when spotting my squat, he'd be behind me and squat with me. I know those could be appropriate, but i could feel my bottom was very near his crotch, and I did mention to him I don't like being touched. And he would always commenting on my posture, my body shape and from time to time, he would tell me I'm exposing myself and then he'd put his towel on me, which I don't like. I usually wear shorts, mid-thigh length, I know I'm not showing anything.

I told my friend about all these, and then she told me actually all the people in the boxing class thought we were together, because they can see the instructor is obliviously into me. I was so confused, but looking back, it all make sense now.

• He would be rude to some of the students (even girls), but always being nice to me

• He messaged me quite a lot

• He walked me home after gym class (the gym is quite near my place), I told him he didn't have to, but he said he wanted to make sure I was safe

• He skipped group dinner with other students, because i didn't join and he'd take the train home with me (same train line, and same direction). My friend told me, in fact he used to take the bus home until I joined the class.

• I went on a two weeks trip, and he lost 10kg and changed his hairstyle completely. My friend asked him why he suddenly losing so much weight, he said he made a deal with me to lose weight (which I only mentioned losing weight once during a casual conversation). And when I returned, he looked a bit disappointed that I didn't show much reaction with his completely new look. He said he thought I would be surprised.

• We once shared an umbrella, and he was holding my shoulder (looking back, I hated that)

Now knowing that he's into me, i feel even more uncomfortable around him, and honestly, i find him disgusting and repulsive. I hate the way he talks, his action, his dry humor (once i mentioned I like custard bun, he said he liked to "play" with it, he hinted that in a lewd way), his appearance, everything. I feel terrible for judging him so much, but he disgust me.

I've already made excuses not going to the gym anymore, and i stopped replying most of his messages, but I'm still doing the Thai boxing. I like the people there, but it annoys me that I will have to face my instructor every time. How can I get over my hateful feelings towards my instructor.

One more thing that still haunts me today, is that one time we were practicing, i accidently kicked his crotch area, and i could feel his thing. It was disgusting!

TL;DR Last year, I joined a Thai boxing class, my instructor was being nice and friendly to me, after half a year, he became also my gym personal trainer, then he started to get a bit more touchy and made me feel uncomfortable around him. Talked to my friend, and realized my instructor is into me and now I find him repulsive. I like the people at the boxing class, don't really want to quit because of the instructor. How can I get over the hateful feelings towards him?