Ha well it's more like... you're heading for a heart attack. Might not be tomorrow but you already have symptoms and we see the blockages. It's in your future if you do nothing. Get this now while you still can, and recover relatively easily. If you wait a year and your health isn't as good it's not an option.
If he is seeing someone, they can do tests to see what's blocked. There are options to fix it other than surgery too. Stents can be put in to open up blockages in some cases. You just hear about people who don't go to the doctor or put it off.