Is this an interesting plot for a YA novel?

[Kimberly]

I had an idea for a superhero-ish novel, but I don't know if it's good or not:

In a world where superheroes aren't a big deal, 18 year old Delaney Fox feels that her problems are quite a bit bigger than that. She was just dumped in the worst way possible: her 18-year-old ex boyfriend, Tanner Curtis, cheated on her with a 15-year-old girl named Sarah Graham, who he got pregnant, and Delaney found out via Facebook, where Tanner just changed his relationship status and left Delaney to figure out on her own. After subjecting best friend Alice Diller to countless weekends with tubes of cookie dough and romantic comedies, as well as dating sites that don't seem to work, Delaney tries a dating site for superheroes. She finds Grant Bennett, who has the power to manipulate his own genetics to make him a super soldier of sorts. The two hit it off and fall in love, with Grant under the impression that Delaney is a superhero, and Delaney not having the heart to tell him that she's not. Then, a group of people around their age start using the Leidenfrost Effect, which says that cold water poured onto a hot surface would vaporize the surface, to rob banks and kill people for insurance money. Grant asks Delaney to help him, using the superintelligence she claims to have on her dating site profile. When Delaney finds out that Tanner Curtis is the one leading the ring of robberies, she further convinces Grant of her powers... But puts herself in danger of being discovered w