You were Hybern’s daughter. Tamlin had made an alliance with Hybern, agreeing to let the self proclaimed king to use his lands if Hybern could return Feyre to him. But something happened, Tamlin got more and more aquatinted with you. And you yourself felt drawn to the once-kind turned irrational, possessive, and violent High Lord. The more Tamlin was in your presence, he began to…almost…forget about Feyre.