<human>: My SO and I have been together for 3 1/2 years. He has a friend who he's known since childhood. She has always visited us when she was in town and whatnot and there were no issues. Now she lives down the street and my issue is that she and my SO are CONSTANTLY talking. Now, I understand they've been friends for a long time but it hasn't been until she moved here that he spends all his time texting her or trying to hangout with her. 

She's always been nice to me but my issue with her is this, she's a complete mess. Drunk, promiscuous, extremely against commitment, and is very vocal about hating on couples. Up until she came around, my SO and I had sporadically talked about marriage and our future, now there is absolutely none of that. Not to mention now that she's around all he wants to do is hang out with her and her friends who are constantly wasted and just overall obnoxious and that's not my scene at all. She sleeps with people in relationships, her coworkers, random people when she's blacked out etc. I feel like i've moved past that part of my life and thought he had too and yet he acts like all their drunken messed up escapades are so cool and hilarious. If I did any of those things now, got black out all weekend every weekend for example, he'd be so disgusted with me.

So, my issue is this. I want to bring up my feelings about this with him but I don't want him to take it the wrong way. Do I want to dictate who he hangs out with? No. Do I want him to feel like i'm trying to control him? No. Do I want him to start putting me and our relationship back into the forefront of his mind? Yes. Am I just overthinking this or am I justified in my concerns?

Can you give me the gist of the text in a nutshell?
<bot>: Any suggestions on how to talk to him about his immature childhood friend and my concerns about it's impact on our relationship without him feeling attacked or controlled?