Dating someone with a mental illness

[Kevin]

I dated a bipolar girl for a few months. Eventually, she hooked up with one of my friends, no big deal, I just sort of stopped calling. I run into her at some restaurant where she's hostessing a few months later. Apparently between the time we dated, and then, she had attempted suicide four times, been diagnosed bipolar/manic depresseive, but she was better now and wanted me to call her sometime.

I didn't call.