So my LTR of 8 months tells me that one of the guys she used to mess with hit her up and they had a conversation about me. She shows me the messages and the dude is definitely “checking” on her. She is completely open with him about our relationship and how happy she is with me. Nothing wrong with the content of the conversation at all. I don’t like the fact that the conversation is happening whatsoever. What’s the rule on communicating with ex’s and past hook ups? Am I being too controlling or is this a red flag?