just offer to handwave anything they're struggling with. that way you won't be waiting around for tags and they can take some stuff off their plate. and reassure them that you're open to doing things once they come back once they're less stressed out or busy.

in general the best way to deal with these things is to just communicate honestly, be kind, but also try not to worry too much about how they feel or what they're doing. you're not responsible for their emotions or how stressed out they are. just keep doing your own thing and either they'll sort things out or take a step back.