So you're mad at him... Because YOU like him and you're angry because you can't tell if he likes you back? Girl you're being really unfair. Even in your post you said "I got extremely angry at him" and "I had to get away with him" just because he happened to report something that his mom said... It has no bearings on his feelings or indicate that he likes you. In addition, in your previous post you said "I have confused feelings for you but I'm not in love with you, this is just because of the place I'm in." And Charlie said that he was cool with that, that he knew not to presume, and that he really values your friendship and sees you as a friend... And you were happy about that in the last post. But now when he says you're his friend, cares about your wellbeing, and says "he's treating you the same as a close guy friend," you get angry at him and accuse him of confusing you. But from here it looks like he's been consistent in his behavior, and it's you who's been confusing. Vacillating wildly from "I don't like him" to "I do like him and want him to like me" and "I'm spending time with my ex again" to "I'm avoiding my ex and Charlie."
It just doesn't sound like the signs you've given us imply that Charlie likes you and I don't think it's fair of you to accuse him of giving off those signals. I think you're just hoping for them. Telling you that you're beautiful and intelligent or casually remarking on his mom's comment is not necessarily romantic... especially when he says he told his mom that it wasn't the case and that you guys are just friends. To break it down: this is not a case of "Charlie acts like he likes me one moment and then acts like he doesn't like me and it's pissing me off." It's "Charlie acts the same way he's been acting, as a friend, but I keep misinterpreting things as romantic, getting my hopes up, and then taking it out on him." And you are lashing out at him. "Getting mad" and avoiding him all day is lashing out--you don't have to insult him in order to take out your frustrations on him.