So me (male) and a co worker (female) have had a pretty good work friendship for a few years now and in no way am I trying to make it anymore than that. However I've never been good at flirting or knowing when someone is flirting with me. I our relationship is kind of big sister little brother in a way. We have each other's backs around the shop and go and chat with each other when we're bored.

There have been a few things more recently though that kind of seem like subtle flirts but maybe I'm just reading too much into it. The main thing that really made me start thinking was the other day, she didn't finish her lunch and so she left it on my desk for me to have which is normal but the note she left on it was "eat me! 😝" Dirty jokes is something we've never really done with each other and so I just wanna know if that was a flirt or not cuz if it is, I wanna maybe back off a bit so we can stay friends. If it wasn't I wanna just move along and continue being friends.