Zero tolerance.
I see a lot of replies that reference “innocent flirting” being okay OR contesting even what flirting is (“if I don’t have my hands down his pants then I’m just being friendly) OR arguing about whether flirting is the main cause of Domestic Abuse (it is not – it’s anger management over many issues… I guess that I should have included my police uniform pic and name in my avatar but we have been strongly cautioned about such nonsense for the sake of personal and family safety!) OR how it effects the individual…
First of all, I like @Adirondackwannabe latest answer. Spot on. Exactly right.
For those who enjoy it and get a thrill out of it, if you are hooked up, what about your SO? Regardless of what they might say, I can assure you that at some level it hurts. Or like the individual who had the understanding with their SO as to flirting as they both were VERY friendly people and naturally flirtatious (no such animal… It means you have esteem issues) and came out of the bathroom to catch her SO with some child’s earlobe in her mouth (or vice versa) and stormed out and the SO is now the “ex” (Why, what happened? Just being very friendly, naturally flirtatious – or does “innocent flirting” left unchecked generally lead and evolve to some point to the serious flirting – or a strong potential to do so?)
And then there’s the OP (other person). The one who is either the target of your flirting or your SO’s flirting or is flirting with you or flirting with your SO.
What about them. What about their feelings? One absolutely (supposedly) KNOWS that the OP knows that it is (supposedly) a joke or just fun or playing around? And that they aren’t thinking that there’s something brewing? (Oh, even if they do, you know it isn’t happening, so too bad for them… what a great person). Or how about if the OP is the stalker (or worse) type? That happened to my overly naive, very outwardly friendly wife on more than one occasion, but one specific one incident where she (having walked up to a guy that she thought, erroneously, was someone that she / we SLIGHTLY knew) approached a strange guy in a store and began sweetly and very friendly chatting him up. Commenting that they should leave and go somewhere for a drink and go to his place, he took her by arm and elbow and started steering her towards store exit (about 15 feet away). Confused and looking around – I know she still felt that this was guy we slightly knew from a few years earlier – she spotted me coming back around the aisle corner looking for her (I didn’t realize she has veered off to talk to strange OP when we first entered store), she said “well, let’s ask my husband”. Strange OP looks up and sees me and literally runs out of the store and completely through the large parking lot and across street between buildings and gone (clearly didn’t want me to see what car he got into).
In that latter scenario, do you have any idea how many weirdo OP (and yes, there are some OPs you know who are covert weirdos) get an initial “signal” that way?
If you are on the market and the OP is on the market and both are interested, flirt (carefully) away.
If you have a SO, I say that anything beyond CASUAL politeness is off limits. And that if that is too binding, then adjust the relationship so that there isn’t a SO!