In 90% of cases "obsessed with" is used I am obsessed with that series. I was a bit obsessed with them. I am obsessed with making money. I'd not going to lie, I'd a little bit obsessed with Bakers Delight at the moment. So I love food, but I also find myself obsessed with the chuffing world around me. He was obsessed with Jack the Ripper, writing numerous essays and poems about him. MJ- um, chil..