Cheating and Identity

What if the unfaithful partner downplays their actions by saying it was just sexting, or "I was just texting with those girls," or if they claim it wasn't sex, just oral sex? What if they say they just wanted attention but weren't ever going to go through with anything? Does it matter if they were always the one aggressively and sexually contacting the women and not the other way around? Does it matter if they clearly planned actual sexual intercourse with multiple women, but at the last minute the women would either not follow through, ghost him, or he would find out it was a scam? How much does the unfaithful partner's intent and being the assertive partner matter? Does it matter whether it was "just for sex" or whether there was no sex but he would text them things about how he really wanted to get to know them better?