Cold damage?

Hi y’all!

This one (and all its offspring) have had a hard life. From breaking, to spider mites, ants and thrips for years.

Now that the thrips epidemic in my home seems to be under control I moved him back inside. He’d been neglected, waiting in my hallway which of course isn’t heated so might this be cold damage?

I do however think I’ve seen this before and I no, I didn’t overwater it.

Also, ants have lived in this pot three years in a row, has anyone else ever had this happen indoors? It’s never many, 10-15 that are around somewhere near the pot and in several locations.

Anyway, thanks for the help ia 🙂