grew up on the same street, their moms were friends. i'm thinking he lives alone so he comes over all the time because he's a social creature by nature and doesn't like being by himself all that often. he would definitely look out for her and let her know when he thinks she's making a mistake and would appreciate the same.
so she would know knsy~. they dated for over a year and he proposed but she said no, it wrecked him for a while.