Well, he would understand if he were being a rude neighbor and excessively loud, or if he stayed up late with lights on toward her apartment, but he's not any of these things. As far as he knows, Jessica is also a model neighbor, so.

"Yeah, though I wonder why she hasn't already moved in with him. And then if they're together all the time, she'll know you're not actually seeing him." He still thinks that's ridiculous.

And yes, she is quite tiresome.

The movie seems to be coming to its climax, and although it's an okay ending, it feels just a little bit unsatisfying.