Overfond
/ˌəʊvərˈfɑːnd/
Definition 1 of 1
Pro Tip 1/3Positive or Negative
Overfond has a slightly negative tone, implying excessive affection is not positive. 
He's become overfond of video games, neglecting his studies.
Pro Tip 2/3Not Always Romantic
While it can imply romantic feelings, overfond often refers to other types of excessive interest too. 
She's overfond of collecting every edition, which clutters her home.
Pro Tip 3/3Subjective Viewpoint
Overfond may be used to express someone's opinion about another's interests or affections. 
Some think she's overfond of her cats, judging by the number she's adopted.