I like him so much and he's back with his ex

Ok well unfortunately if anything is going to go down, you have to make sure that he is out of a relationship, so you need to wait for him to get out of the current relationship, and then continue to pursue what you want, good luck, and you never know he could have the same feelings for you.. :]

I know you’re that type that holds everything emotionally inside and tries to be the good friend…

I know he’s the type to act as if something never happened even if he enjoyed it because he’s scared to lose that great moment to something hurtful in the future.

One of you HAS to come out of their shell and fess up to their feelings and take a risk on the other. If you do not, you will regret never taking action.

I don’t think I can give you a lot of advice but I can tell you what you should do. Try talking to him, or if you’re too shy try writing him a letter explaining how you feel. If he hasn’t used the “l0v3” word yet explain how you feel without using it. Don’t use it when you write him. Just explain everything else. Hopefully he’ll see how much you like him. Good luck