It's not hard to fall when you float like a cannonball...
[OOC: Rizzy and I have apparently decided to finish off this night of trauma with a plot we've been cooking up for weeks now, thus concluding this in-game night of ANGST. Good for us. We're evil bitches and don't you just love us for it?]
Desmond Descant is about as depressed as a man who has lived a few thousand years more than he should can be with good reason. Life as he knows it has gone from bad to worse and shows no sign of getting better and while this is generally cause for him to get up in arms and do something... He just can't. Not right now.
The whole confrontation with Gene... Becky. That was the final nail in the coffin for him. He let her go and God only knows what might happen to her before Gene gets to her (thankfully, he doesn't know about the sad little scenario on the roof or he'd be feel worse than he does now), so... Yes. He couldn't say anything helpful... He couldn't get her to stay. And Brando's dead and who knows what's going through Martha's head right now.... His girls are hurting and that's the main thing, and there's not a goddamn thing he can say or do to make it better for either of them.
And now he's out walking. The Doctor's not the only one who will wander aimlessly to work out excess emotions (one more reason why they're more alike than either will admit). He got Martha's location from Penny before, so he's just going to start walking until he finds Ripley's place or runs into Martha on the street... Or until he runs into something he can take his frustrations out on, whether it'll bite his face off or not. He's just in that sort of mood.