How do I react to his..reaction?

So Ive been in this relationship for almost 4 months. I know its not the longest time but honestly it is my longest relationship, and I truly have the strongest feelings for this boy...The difficult part of our relationship is the way he's been acting lately. I know he loves me, due to a comment he made last night, but things have been so odd. As of last Friday we were fine, we spent a lot of time together and had a lot of fun. The next day though, he barely talked to me. And all weekend it was like I either didn't exist, or he spent the time teasing me harshly over stupid things. Any other person would laugh, but he understands I have a medical depression problem where over winter, certain things seem worse than they really are. His teasing has seemed to become mean to me. And he always blows me off for his friends, which I'm supportive of up until lately where they feel they can say things about me when they don't know me. I tried to swallow ever word I wanted to say (since I have a considerably short temper) but last night I just couldn't take it and we ended up fighting. I've felt horrible but I figured it would be like any other fight, it would be over the next day. But we went to bed without saying we loved each other or even goodnight. Then today I tried texting him to see if he was still mad and I never got a response...But it seems according to my bestie, hes in an amazingly awesome mood. What does this mean? Is he mad or not? And what do I do to make a stubborn boy understand his teasing hurts without him saying I overreact? Please help :(