Kissing but no sex, or sex with out kissing, which is worse?

Over my life’s travels I have met a lot of people and it never cease to amaze what people think. I met a woman once who said she was fine if her B/F dipped on the side with another woman just so long has he didn’t kiss her and especially not with tongue, and that it was understood if she found some guy really hot and wanted to boink him she could, just so long as she didn’t kiss him. She explained it to me that kissing was more intimate, which is why prostitutes do not kiss their Johns. She viewed the sex as just a mechanical act for pleasure. I also met a woman who said she could forgiver her B/F if he was making out with some other woman so long as he did not grope her and certainly if he did not boink her. She viewed the sex as giving all of yourself to whom you were naked in bed with. I know to many BOTH choices are poor choices, if you had to choose which one was worse than the other, would sex with out kissing or kissing but no sex be the worse?