Search Results: drives guys away

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