I'm so very very sorry... and I don't mean to sound insensitive (I will get onto my main message in a moment) but I snorted coffee out of my nose when I read that.
I agree with Winter4me that they could very well have been trying to use humor and that actually sounds like something my dad would have said... quite dead pan. They sound British as that is the kind of dark humor you get over here.
I'm sure they do care about you... they came in to console you after all. What parents and friends often don't understand is that with depressions sometimes comes hypersensitivity and as such our twist of things can become irrational and fixated on a flippant remark.
In times like that, it could be helpful to take a deep breath and question their ability (directly) to take you seriously. Or as winter suggested, speak directly to a T/other responsible adult about your feelings
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Independent Mental Health Advocate (IMHA): UK