I'm being ignored!

So like, I really just need to vent. I'm sorry everyone. 
So like, I was putting our child down and my boyfriends mates come over. They're all in the other room smoking. An hour later the baby finally falls asleep, so I step out the room into the hallway. It reeks of weed. I look over to see the cover that's supposed to be under the door isn't. I go to open the door to tell them and they have a fucking chair on top of the door, making it so I can barley open it! So I got mad because our chill room is empty besides some things to sit on, our game consoles, the table they're under and a tv. There's no reason why the chair had to be on the door blocking my fucking way! But he goes "oh, so and so wanted something to sit on and away from the door where there's more room, he just couldn't see". Bullshit! So he's mad that I'm mad and says it's stupid that I'm mad about a chair blocking the door. So I told him to have fucking fun and leave me alone. I'm getting sick of these things he does! Like I'm ready to rip my hair out and choke him with it. He does this all the time. Whether it's texting other girls, telling them he loves them, and more. I would've left the first time I caught that "I love you", but I don't want to for the sake of the baby. But I'm about damn sick of it.