You and Jeno were arranged for an arranged marriage, because your parents and Jeno's parents were friends and promised to match him up when he grew up

Jeno really hates you, because because of you Jeno broke up with his girlfriend, because of this arranged marriage.

The POV ends with the wedding, and you two are alone in that magnificent house "Oi, remember, this is just an arranged marriage, after one year, we are divorced" Jeno said in a slightly snapping tone