What do you do when a guy you like acts differently and holds a grudge on you fro your opinions?

he obviously doesn't deserve yoh

Well, how differently is he acting compared to normal behavior? If he is holding grudges on you just for your opinions, that doesn't seem like a good friendship. And even though you stated you like him, I don't know if that would be the best thing to get with him if he's acting like that. I would suggest that you try talking to him to see why he is acting this way. Something may be going on in his life and he needs some help. Still, please do be careful. And make sure you actually like him, as you should really get to know him first. Besides, some people change overtime, and once they reveal their true selves, you have to know that that is really them and you have to either take it or leave it. But your choice is your choice, and do what you think would be best for you to do. Just don't push him to see what is going on with him, as if he doesn't want to talk about it, then he doesn't want to. There are many things that could be going on, but, still, holding grudges on somebody just for opinions isn't a good thing. Do what you feel is best to do, see if you can help him, if at all, and then decide if you really do like him. Just be careful, stay safe, and think before you do. Address this situation and recall all that you know about him so you know what you may be getting yourself into, all right?

Hope this helps you and your situation.