Why does he need to see a cardiologist?
Good thing you haven't combined your accounts yet. 10K for an out of country? Hospital stay?

I think that I hear what you are saying with him about needing to take steps to avoid these asthmatic crisis. At the same time, it's not up to you to be his mother.
I'm wondering if there's more context from your bfs side about calling you out for only going to male drs for everything?