This is an 80s, possibly early 90s, teen romance. A girl goes on a spring break cruise with her grandma. She has a crush on one of the ship’s workers. And also meets another passenger that is the “funny” boy. The ship’s worker leads her on a bit. One funny part is; she takes way too many tanning pills and turns orange trying to impress him. She ends up with the funny boy in the end. I thought his name was possibly Jace or something similar.
Love Among the Hiccups by Peter Silisbee is the title that comes to mind, but I’m not sure that was it. It may have been something else by that author, or something sitting near it on the shelf….
Maybe Birds of Passage by Miriam Morton