Looking for some serious guidance!?

Okay, Im in a relationship which I am not enjoying. I am right now have been fighting with my bf over that he doesnt like the fact that I have been fighting back with him on some issues cause i usually would just end it, But recently I got tired of that, so decided to fend for myself. Its day 3 and he wont reply to anything that I send, text, im, emails, anything, ive called over 15 times, and nothing. I saw him today, and he was wearing the necklace I gave him, and he would catch my eye here n there, but Im so lost, Why is he being so immature about me sticking up for myself? Why isnt he replying? What am I missin here???????! How do I get him to talk to me, when ive tried everything. Im gonna see him tomorrow at around 7 because of work, so anything would help me please!