Obsessing

You need to stop obsessing.

Stop obsessing over that.

Stop obsessing over the man you broke up with. You should find a new partner.

Ziri needs to stop obsessing over that rejection.

She spent months obsessing about the tile inlay rather than dealing with the structural problems of the house.

Why are you obsessing on something like that?

He hadn't forgotten; he couldn't forget; the past was all over him, obsessing and dominating.