EX now added me back on Snapchat?

Ex from one and a half years ago whom I left for current boyfriend ays that he still wants me and misses me etc, but I’m with my boyfriend of 1 year and 8 months and I don’t care about ex, but it’s good to talk to him after so long. He now added me back on Snapchat. Is it wrong/cheating?
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+1 y
I am committed to the boyfriend.
EX now added me back on Snapchat?
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