How do I confront my man?

Who is ready for some drama?

Ever since having our second baby I've noticed my man was off. Tried putting it off to anxiety or whatever. Tonight he fell asleep and I went to turn on his alarm like I normally would when he falls asleep before doing it. Thats when I noticed a snapchat from his ex. So naturally I looked and this guy... has been talking to her since I was pregnant. How the hell do I confront him about this in a civil matter because we have kids and I just want to rip his head off
How do I confront my man?
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