Happy Valentine's Day!
I've never been one for V-Day celebrating. I don't have the patience for the mushy love stuff, nor do I like that affection and romance are only promoted once a year. But, per the occasion, many writers will likely be writing gooshy romances. I encourage you, however, to take it a step further.
"Love gone wrong" could mean a murder, a breakup, or a con-artist or bank-robbing couple. Anything gone wrong. I'd love to read it all!