The Christmas party

It was Christmas and me and my sister what to a party and I saw my boyfriend kissing another girl I feel so sad but what should i do i walked over and said what are you doing and he said what are you doing here I thought you where not coming and I said I had to mam and dad said I had to but what are you doing he said ok I am sorry but this is Emily ok and then I throw my drink at them and Emily said what you problem and I said he's my boyfriend and Emily ask ben my boyfriend ben is this throw and I said yes and he said ok it throw !!!!!