OMG what is going on i have a serious question and need some answers not nothing sarcastic either please ?

But my ex of 4 years left me for who he with now and she is pregnant he has been calling me non stop for the past week haven't answered want no dealings with him yes i still love him because we have history but he betrayed me so if he is happy with his new lady why is he fricking bugging me?and today he really blowing up my phone