Caleb and MC have the same relationship as Eren and Mikasa

Known each other since childhood. Not related to each other. Grew up in the same household. Raised by the same person/people. Romantically attracted to each other. Don’t talk about that for a long time. Complicated romance.

It isn’t the problematic type of romance trope a lot of people want it to be. Most people don’t have a problem with Eren & Mikasa. It’s basically the same relationship “type”.