Okay so my woman asked me the other day if I would be okay with her getting a drink with a guy who she "used to be best friends with" about 4 years ago, but he had tried to make a move on her when she was with a past ex and that basically ruined their friendship. Well the guy texted her out of the blue apologizing about it and asked if she wanted to grab a beer on a sunday afternoon. She said this guy is in a relationship. At first I said I didn't think that was appropriate but then later told her that I actually didn't care and she was free to do what she wanted. Well today she texts me and says that she is on her way to meet for a drink. While out, she sent several texts asking how I was and saying like "hey still here, eating almonds haha" and "can I call you after?" She's tried calling and for now im ignoring it.

What's the appropriate response here? On one hand I said it wasnt appropriate, but then I did say I didn't care but I had made a big deal about it not being appropriate at first though. Thoughts??