On valentine's day, i walked out on my bf because he wasn't going to spend val with me.?

He told me that he has a cl at 6pm while church ends at 3-4pm, but he came over to give me my gift and wish me a happy valentine's day...i was mad cos i really wanted us to spend our first valentine's day together. I love him so much and as he was trying to talk to me, i walked out on him and went into my house and he drove off. Since then he won't pick up my calls, he wont even reply to my text and IMs ... i haven't called him for a couple of days cos i wanted to give him space, so i called him again and still he wont pick up. My friends were like break up with him and **** but i don't wanna lose him. What do i do??