I really hope that you will find out why L decided they need some time for themselves. But I also feel that this - the care giving - might be so straining for them that they will need to focus on themselves as well. I know that from my own battles - I at times just need to withdraw to recharge, because I really have no spoons left whatsoever. I remember that some years ago, I had a phase like that: I was mentally SO wiped that I only sparsely interacted on FB and other socials, and this attention seeking ex friend of mine (racist on top of it) sent me a complaining message about not being in touch anymore, so I took the time and wrote her a lengthy message back, explaining my situation, and all I got back was "Okay, I get that but I have it so much worse blah blah."

Hope that's not the case with L, though! And that they will get back to you.

*hugs* if you want them.