i ghosted a lovely couple during a depression episode and 6 months later i dont know if its ok to reach back out

this has been sitting on me for ages, posting anon obviously. im 41, my wife is 39, married 14 yrs, in the LS about 6 yrs, dublin. last autumn i went into a depressive episode — not my first, ive had 3 in my adult life — and i did the thing depressed me always does, which is ghost everyone. not just LS ppl. friends. my own brother. my mum got a "sorry been swamped" text for like 11 weeks. i wasnt swamped, i was lying in bed at 2pm with the curtains drawn unable to make a decision about a sandwich. there was a couple we'd been seeing for about 8 months at that point. genuinely lovely. the kind of connection u get like twice in a decade in the LS — funny, fancied us mutually, low drama, great in person, became proper friends. they'd been at our anniversary dinner the month before. and i just... stopped replying. mid conversation. they sent 3 follow ups over a few weeks, then a "hey is everything ok please just let us know u're alive", then they stopped. my wife handled them as best she could, sent them a "we're having a tough patch personally" message at some point, but she didnt know how bad i was either tbh i hid most of it. they were sweet about it from what she said. ive been out of the episode since about feb. medicated, in therapy, doing the work. and i keep thinking about them. they're still on the app, i can see them. i havent reached out bc what do u even say. "hi sorry i disappeared on you for 7 months i was clinically depressed and couldnt face anyone" feels both true and somehow not enough. i also dont want to drag them back into something that wasnt their fault when they've clearly moved on. but i also feel like leaving it unsaid means a really good connection died bc of my brain and i hate that. has anyone reached out to ppl they ghosted during a mental health thing. did it go ok. did u just leave it. i genuinely cannot tell which is the right move here