Plz help me i'm in pain?

hey i'm in love with some guy, we had been datin 4 1 month i knw it's nt along period bt i feel like i'm in love ,every thing was fine between us till the last week whn he told me tht he still ve feelings 4 his ex who he dated her 4 3 years nd she was alier he sed tht he dnt wna come back 2 her bt he need time nd he dnt wanna end our relation ship bt he feel tht he is lost nd he treat me bad he hurted me with his words durin this week,yesterday he came nd he wanted 2 talk 2 me nd i was angry cz whn i talk 2 him he sometimes tells me whn i talk to him on the net tht he is busy nd whn i blame him 4 his behaviour he asks me 2 stop it,,idnt knw whr i'm standin whn i dnt call him he say y vent u called me , i tried 2 c him 2day bt he didnt answer his phn, i dnt knw wht 2 do or wht 2 think bt i need ur help plz