This guy is a bully, plain and simple. The fact that you liked him is an unfortunate added layer in the situation, but it doesn't change the fact that he's a bully.
Dealing with him isn't going to be easy. If you tried to talk to him about it, he might laugh in your face. And it's certainly illegal to hire someone to beat him up. Your best bet, as sad as it sounds, is to just ignore him. Live your life and live it well. Celebrate the fact that you have friends and a good heart and he's an idiot with horrendous social skills.
Bullies are weak, small people. They lash out because their home life is terrible, their minds are weak or their self esteem is in the toilet. It rarely gets better for them, and as the years go on, their smallness increasingly becomes their defining trait. So just be patient, and let nature take its course.
I know it's not as exciting an answer as "go slash his tires," but rest assured that fate catches up with jerks.
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I have a brother-in-law who behaves like this and after five years and countless jabs I finally said, " Wow Dave, you're mean. Is it your intention to hurt people's feelings?" That was all it took. He might still be a total ass when I am not there but when I am around he is quite civil. Maybe try that on your bully. Either he will feel badly when confronted or he will mock you again. If he continues with this bad behavior I don't think there is much you can do to stop him.
I'm all about calling out the bully in front of people. I saw this guy picking on young girl & said to him, "Ohhh..., look at you getting a hard on, picking on a little girl. What'll do it for you next time? Rape?" The look on his face was priceless & all eyes were on him. I just sarcastically smiled. I'm not saying he was a rapist by any means, but he sure didn't like people thinking he could be. F him & all the bullies out there!
He does this to you, remind me why is he your crush? Is he like 3% body fat with abs an inch deep lol?
Or maybe he is really 16 and doesn't know how to approach a woman...
this is an easy one, you've actually solved your own problem in your question. you know what makes him happy, reacting. so stop. nobody can make you feel inferior without your consent (eleanor roosevelt). i like silky's response too though. ;-) bullies ARE weak, and will only prey on the ones they perceive to be weaker. so don't be weaker, or even put off that you might be. getting upset at his comments makes him feel like he's accomplished something. "yes! took her down again!" every time my ex or his wife bullies me, i just smile like the cheshire cat, oh look, your life still sucks, good luck with that and i will pray for you. always aggravates them. AND shuts them up.
Seriously just find another boyfriend and take him to the gym with you and ignore the other guy completely. What a tool.
I'm dealing with an asshole right now, he laughs when I feel good and calls me chubby when i'm clearly not, best not to give a reaction, if you make fun if him back see how he likes it cause I bet he won't. I understand though I still like the guy n he likes but sadly it won't work due to his immaturity