Is there such a thing as care to much?

This happened to me, well i didn't hurt myself on purpose but my girlfriend did cause i hurt myself. And yes its a little ******* creepy, but if you just tell them that, them hurting themselves for you hurts you more. Cause if they are not strong and able then how can they look after you? Thats what i did and it worked. Maybe it could work for you, or else this person is over obsessed.