Ok, I'm going to try to put this as delicately as possible - and I'm sure it's probably going to come out wrong, but there goes:
If something happens to you during the course of our time together, I *will* call EMS. I will NOT help you down two flights of stairs to your vehicle to call from there. Your health/safety is my number one priority. What you have to explain to your SO later is none of my concern. If you have medical issues and you came to see me, that's the risk you took. If you choose not to see me based on any of this, so fucking be it.