Book about a girl who works as a mermaid and security guard from apartment takes notice

[idk]

I first read this in 2023 no idea when it came out. By an author LIKE Alexa Riley or Jessa Kane(write short novella romance with spice)
Basically a girl works as a mermaid and has colored hair she practices at her apartment complex in the pool and the security guard watches her every night they finally do stuff and he distances himself cause he thinks he’s not good enough

[Becca]

Pool Girl by Cassie Mint?

[EchoOfBronte]

“Taken by the Russian” by Alexa Riley & Jessa Kane，or "King of the Sea" by Laura Lovely?