(~s)
1.
If you have a ~ with something or someone, you keep thinking about them because they are important to you.
In his ~ with Robyn, Crook had neglected everything.
N-COUNT: oft N with n
2.
Preoccupation is a state of mind in which you think about something so much that you do not consider other things to be important.
It was hard for him to be aware of her; he kept sinking back into black ~.
= obsession
N-UNCOUNT