They've been working on a YA sci-fi romance series themselves wherein the aliens are suspiciously crab-like beings who find love amongst the humans and they want you to beta-read their first draft.
there's a part of my mind desperately trying to write awkward, hermit crab specific romance, but only know some specific anatomy terms means i end up with things like "her carapace glistened in the sunlight, and her face hands twitched eagerly"
No no see, there's interspecies romance. The interspecies romance serves as a metaphor for racism and the gay interspecies pairing serves to highlight the racism in the gay community. Your crabs have a message in their story.