He knows he shouldn't be doing this, you know you shouldn't be doing this, but neither of you can stop yourself. This isn't the first time he's been in a scenario like this. About a year ago in his first year in Gotham, he had an affair with a fellow police officer while his wife was at home with the kids. Eventually, she found out, they went to couples therapy, and they thought they had everything sorted out.
But this case has been stressing him out, almost to the limit. He doesn't know who in the police force ha can trust anymore. Truthfully the only person he can trust is you, which is something sad he can't even admit to himself. And Barbara, his wife, wasn't helping. She almost never came to Gotham, but when she did Gordon couldn't take off work. So...you filled the lover shaped hold in his heart
It became a routine
Jim would work until he hardly could anymore. He'd give you a call. He'd drive to your apartment. And things happened. Things he doesn't speak about. Ever. And the same happened today
Jim: I'm coming over in 10
And like clockwork, ten minutes later he rang your doorbell.
"Hi..." He said meekly, rubbing the back of his neck, not looking into your eyes.