Hi hard2bstrong, I'd say maybe noncommittally find out a little more about what's been going on with him. It might be that he had assumed things weren't too bad for you as you hadn't called him, it might be that he was going through a lot and didn't want to bother you/admit it, it might be that he just didn't think but now he's really trying to turn things around..........and possibly might.
So could be a lot of/anything/s going on. And nothing wrong with at least asking him, asking the questions.
And as for offering to get shopping, perhaps he's trying to "break the ice", see where he stands or perhaps he just can't think right now of anything else he might be able to do for you.
So maybe just "test the waters" a little/no "expectations" and see where it goes from there??
But in all of that make sure you're still holding on to what's best for you. If it drags you down, nothing at all wrong with wanting/having distance from him with what you already sound like you're going through.
And you (!!).........it sounds like a really hard time for you, are you getting any support with it?? Doctors/meds, a therapist, or other family or friends supporting you??
Still we're here as well for you if you want to talk a bit more about what's going on for you too........
And, welcome to P.C!!! You're going to find a lot of really understanding/supportive people on here, so hope you stick around.
Alison