Search Results: my ex boyfriend will not go away

my boyfriend (now ex) has been depressed and suicidal for a long time. He didn’t get to go to college with me because of money issues, and he’s been downward spiraling for a while. Last week he was telling me he loved me and needed me in order to get himself help. Then I️ get a call from his gangbanger (she is actually in a gang) new girlfriend (that was hidden from me) and now all of a sudden he wants me to leave him alone. It’s just confusing. He was never the guy that would cheat. It hasn’t been going on long, according to a reliable source. But anyway, the things I️ consider self destructive are
-his continued suicidal thoughts/attempts
-he cut off me and his best friends and will speak to no one
-he doesn’t sleep
-he abuses drugs and alcohol (this has been happening for a month or two)
-anxiety
-pushing me away
-he has no will to go to work
-doesn’t sleep
-he bleached his hair
-and he cheated (this is very out of character for him.:. Long story)
-this girl is 17 and he’s 19 and they now live together
-he no longer wants to apply to college when all he did before was complain that he was a failure without it

So me and my boyfriend have been together for more than 1 year
Im 22 and he's 27
He has been living with few male housemates (around 8) and his house is such a shithole but its only 15 mins drive from my place
I feel uncomfortable when I come over anyway and he knows this and feels embarrased
The guys are dirty and dont clean after themselves
So he had enough and searched for other places to live
He found this apartment and its 10 mins away from his workplace but 30 mins away from my place and there is no train station nearby
he's the only one that can drive at the moment so he has to pick me up to and fro my place
So anyway, the landlord is a 24 year old female with a son
she's recently divorced and she goes to gym a lot (same as my boyfriend)
So now im getting worried about this
she's young and fit
He told me that she asked if he had a girlfriend and if he does, then he can bring his girlfriend over anytime or she can live with him
And he told her that he does have a girlfriend (me) and that i will be coming over regularly and she is fine with that
Should i be worried about his living situation?
What if he cheats with her?
She is full telling my boyfriend her whole life story how her ex husband was cheating on her with her flatmate
I don't know why she would tell my boyfriend this
by the way my boyfriend has never cheated during our relationship