This girl my SO used to be good friends with just kind of popped back up in his life.

When my SO was in the hospital and I was celebrating my birthday with my family..she came up to the hospital and visited him. I walked in on her stroking his shoulder..she looked at me and said "oh u must be the girlfriend...that's why you're looking at me right?"

Let's get one thing straight...my boyfriend is always honest with me..he fucked up by not warning me that she was there and we discussed it but since then he tells me when she is messaging him on facebook blah blah blah....I trust him whole heartedly.

This girl has a fiance and two kids....so why is it at 4-5 in the morning she is messaging my man trying to start a convo? She won't accept my friend request on facebook...not a big deal..just makes me suspicious...my SO wonders why she is being so attentive to him.

I'm not stupid. I know this girl likes him. I told him so...he agreed.

What do I say to this girl politely to get her to understand that I'm going to deck her if she keeps hitting my my man up and tagging him in slightly romantic/friendship memes on facebook.

I want to be respectful...but I don't have a filter. Help me please.