Several times my main plate/ltr has called me on the phone in the evening, asks what I'm doing and after I tell her something like hanging out/watching TV/reading/playing guitar, she tells me that she is in her car parked in my driveway.

In these instances, I have asked her to come in and she does with lots of "hope I'm not bothering you" or "if you're not too busy" chatter. She stays for a while and then leaves.

By way of background, I work 10-12 hour days everyday and with work, gym, seeing my kids and other activities I am busy. She has 3 kids at home and takes some classes at night so she is also very busy.

At first, I thought it was cute and that she is trying to create some time to spend together. Now, I'm feeling like it's kinda creepy. Reactions to her drop bys?