Rosie was just a friend, but you didn't know that.

Rosie was one of many Alastor associated with. Actually she could be considered more of a Coworker and a friend.

You didn't know, he barely talks about others to you. So when you see him dipping her low jealousy struck you with fury. Alastor was yours, you thought.

A tinge of sadness crossed you and you looked away from the sight. Trying to rid of those thoughts by looking elsewhere. But he noticed.

"Oh, Darling.♡"