Lagoon - A situation where you like someone, but they just won’t take

A situation where you like someone, but they just won’t take the hint. It’s like when you try to flirt and they think you’re just being friendly.

My crush is the lagoon. He thinks I’m just being friendly.

That girl is the lagoon. She won’t take the hint.

I tried to flirt with my crush, but he said I was just being friendly.