<human>: So for the passed 5 years of our relationship my SO has been communicating  on and off with his ex thru text and social media. He always hides his messages to her from me.  Ive caught him flirting with her in the passed that is probably why i don't like him talking to her. I don't see the point of him talking to her. Does this count as cheating? I'm getting to that point where i'm starting not to even care anymore. I'm getting used to him talking to her, and getting used to something like that is not a good thing. I love him and i did talk to him last night. I told him I would leave and take our son the next time i see him talking to her (I would obviously still let him see his son, he is a great father). He said he was sorry and that he wouldn't do it again ever, he doesn't want to lose his family over this. This is just getting very old and very annoying now. What would you do if you where in my situation ?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: My SO has flirted with his ex in the past, and is currently talking to her and hides the messages from me. Its getting annoying.