i feel like she'd definitely spot him and sort of ease into it like "hey man where are you going? i'm going to a diner because i'm starving, let's hang" and then after food be like "you should just come over and watch some netflix with me" and after they inevitably fall asleep she'd just be like, "it's cool if you wanna hang around for a while? i hate being by myself" which isn't a lie, but she also wouldn't wanna make him feel any type of way and they could have just had fun and hung out for a while until he eventually moved on to the next thing? and any time she saw him after that she'd tell him he can come back around any time because she likes having diner friends obviously. like a quiet, mutual respect for both of their situations