Question

Hello Rabbi,
I have a somewhat strange question, but it’s something that’s bothering me.
I’m a student and I rent a housing unit next to an older couple who are the landlords. When we signed the contract (about half a year ago), he told me that he had received several offers, but he specifically wanted a student because “that’s the population he connects with,” and he also doesn’t want families with babies who make noise, etc., etc. So he even lowered the price by a few hundred shekels from the going rate in the neighborhood so that students would come.
So far so good. But it turns out that the man is bored, long-winded, and a nuisance, and he wants to talk to me for much longer than I’m interested in. I won’t go into detail because it’s unnecessary, but in my feeling he’s really overdoing it.
Now obviously, if this were just some neighbor, I would firmly and tactfully make sure to avoid these meetings-conversations, and that wouldn’t be a problem at all. The problem is that he’s the landlord. It’s not that I have any interest in keeping up a close relationship with him, it’s just that I tell myself that, so to speak, in the contract he wanted us to be friends, and I kind of agreed, so if I’m cold toward him it comes out that he gave a discount to a student and got nothing out of it. On the other hand, I’m losing my patience.
So the question is: are parts like these, which were supposedly a kind of gentleman’s agreement surrounding the contract, things that one has to keep in any case, or are they open to reconsideration?