No romance for abuse victims until they have properly healed.
After being saved from systematic abuse by someone or something by Bob, Alice tries to show him her gratitude in the most obvious way possible... and finds herself immediately rejected by him. This is what happens when anyone decides that the love being proffered is, in fact, merely a desperate method of thanking the rescuer; generally, they turn the offer down because the one who offered was, quite potentially, psychologically unstable and might need therapy before considering normal relationships. Or perhaps they just do that sort of thing all the time and don't expect a reward. This of course leave the hero with the dilemma of what to do with the rejected lover, as they usually don't take no for an answer, and quite often insist on following them until they have proven that, yes, they actually do love their rescuer.
Will go under Index to the Rescue, Abuse Tropes, and probably Unrequited Love Tropes. Needs More Examples. Needs a Better Title.