I don't want to try and intrude as I do not know your relationship but unfortunately you should consider that she enjoys speaking with you because you complement her, if she is one of those bitches who are horrible enough to say how fat they all the time then she just wants complements, you going to her house every day or so to complement her is possibly just an ego boost. Just thinking out loud, it is only a possibility.
Wow what the forget brain i typed that entire thing in slow motion while reading it out loud in my mind slowly.