How to deal with a medical situation from enabler?

My mom sent me a text last night, for the first time in 6 months: "[stepdad] fainted, I thought you would probably like to know. If not, my apologies for disturbing you."

I talked to my stepdad only once since going NC with my mom. I do not have a very close relationship with him. He called me a couple of months ago, where he played dumb/oblivious to the situation with my mom and asked when I would visit them again, and what he should do with my stuff that I left at their house. I somehow circled around the question, and, that was that. I haven't contacted him since, including over the holiday season, and neither has he. This pattern of him ignoring and enabling abuse from my mom has been going on since childhood (I grew up with him), and I was just over it. I am not necessarily afraid of or opposed to talking to him, but there is just nothing substantial in our relationship.

My stepdad has a history of unexplained medical issues, presumably related to stress. I'm assuming this is what's going on. I don't want to dwell on the passive aggressive tone from my mom, but I am not sure what to do with the situation... do I text? Call? Ignore? Especially because I am not necessarily NC with him - he didn't "do" anything to me, but I haven't exactly been keeping in touch with him either.

Just cycling through the old feelings of obligation and guilt, I guess...