I'm so angry

Hey girls I'm so angry with my partner he let a girl in that his friend stay the night even tho I said no I said to him you have piss me off so I'm off to bed his friend is homeless and he said to me she is not staying I will find her a place to stay so I go to bed and I wake up with him just getting in bed I give him a kiss and a hug and we go to sleep and I think he gives me a kiss on the four head on the mods of thing so I wake up with his alarm about fity time and I tell him to turn it off he goes for a wee and says she's still asleep and I'm like what and he's like she's still asleep and I say I thought you were finding her somewere to stay as I said to him if she comes home with us she will not leave he said it. Was raining really hard and I could not leave her out there if the wether was bouncing off the floor and I was like find her a bridge to sleep under but befor all this about a week ago she thought she could say that I stole her stuff and that I was against her and also comeing into my room shouting I was in a rage I'm so angry at both of them what do I do now he's to loyal to have sex with her I know that in just abit annoyed at the fact I told him to not let her stay the night and also I knew she may have been coming over to have a cup of tea to and to find her a place to sleep meaning a house who she know it's safe I really want to have a go at her for staying but I told him not and I even said there is no point me saying anything as he goes against my word