I'm stuck on my perpetually re-written in-progress novel.
Orsino is a depressed guy who starves himself and resorts of self-harm if under more stress than usual and the usual is not really very much stress at all. He's never gotten help for it. His uncle thinks he'll "grow out it" and just forces him to eat whenever he manages to catch Orsino sneaking around their mansion which had secret passages built in, but only Orsino fits through them because his uncle has gained weight since the time the building was built. It was probably only a matter of time before Orsino croaked in the walls like a rat and that might be his sort of plan since he doesn't quite agree with actual suicide, but isn't particularly interested in living.
Then the protagonist Epifan accidentally turns him into a vampire. She likes Orsino, or more, has a crush on him and shades of "I can fix him!" and as such, wishes to make him feel better.
But as a person who has been a bedridden shut-in for her entire life (only striking out on her own in undeath), Epifan is not really equipped to help him beyond being there for him. Except Orsino is more than a little angry with her now that he's harder to kill (she didn't explicitly explain vampire weaknesses to him) and suffering from Horror Hunger
and guilt over up eating his uncle.
The setting is a 1850s-esque fantasy-land so Epifan probably doesn't even have a therapist to drag him kicking and screaming to.
I'm not sure if there's a way for Epifan to make Orsino feel better or if its better to drag a third person to stop them from recirculating the bad ideas their socially inept brains come up with. Now that I think about it, Epifan comes off a little abusive since she resorts to tying up Orsino and locking him somewhere when she can't keep an eye on him to stop him from doing something dangerous for either of them. She ends up doing that at least three times a week because she eats people very often and Orsino would complain, ruin the element of surprise, and possibly orchestrate suicide by cop.
So I guess if Orsino gets any less depressed or reconciles even slightly with Epifan, it might just look like Stockholm Syndrome.