OMG HES MADE ME CRY AGAIN!!!!!!!!!!!!

Just had a call from my stbx to tell me he has just spoken to the kids and whats this about i dont want him in my house on xmas day.I said well im sorry but its true i dont want you here.I just got a mouthful of abuse,whats my problem,i said i wouldnt stop him seeing the kids,oh and im a selfish c**t.Well i think i have every right to not want him in my house,he has broken my heart repeatidly this past year.The kids are older now and its funny he only wants to see them when he feels like it.He said whats differant about this year to last,i said ive been throug a lot this year and he had the cheek to say that hes been through loads this year too.(PLEASE)he chose to leave us and is in his second relationship since he left for the last time in october.Am i being selfish? should i let him in even though i cant stomache seeing him?should i do it for the kids sake?