Is this a form of cheating?

K guys I’m super innocent and haven’t dated much. I’ve been with my partner for 4 years and have 2 kids together. 2yo & 6 week old. Anyways my partner has a YouTube channel and posts videos about car audio, a girl 2 towns over commented and said she lived in the same state and wanted to make her night more “interesting” and kept commenting that she’s trying to “talk talk” and “tryna know him if you know what I mean ;)” he said he has a wife but he would still like to talk and get to know her and build a friendship. Is this a form of cheating? I don’t look at his phone cuz he has it with him 24/7 even at night so idk if he texted her.. so what do you think about what he said?

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