>>56827060This reminds me of a doujin I read where the heroine is a massive cuckquean because her first crush was married so her brain kind of short-circuited with the thought that her boyfriend isn't supposed to be into her. Was also kinda cute because the protag wasn't all that into the cuckquean stuff and was slowly breaking down her walls into having a normal relationship.
Stopped reading when a cliffhanger being that her first crush was back in town and newly divorced happened.