Is my boyfriend cheating on me?

he dosent call me hardly anymore doring the day and weekends he dosent answer my calls or tex sometimes i ask him why and he changes the cavarsaion he said i have been griving him crazy and that i act like am a kid sometimes and than today i asked him will he call me tonight and i would wait up for him but he said yeah just give me some time did he brakup with me or is he cheating or thinking about braking up with me were only 5 days away from vday and i need to now cuse i dont want to be alone that night or should i leave him alone and wait till he calls me or move on with my life can some one help me