Guys can u tell me why is he trippn lol?

Umkay me and my ex were 2gether 4 a yr and had plans 2 gt marride and the whole works but we decided 2 take a break and blah blah blah so wen we broke up he didnt want 2 talk aboutthe breakup at all and i was like ok i can understand so now its been a month and everytime i txt bout it he wnt txt bak but if i txt bout sumthin else he will...i dnt call but i did once and left a voicemail bout talkn bout us and he never returned my call....so wtf? Its bn a month grow sum right? So wud is his prob?