Using pop-science was a bit of a silly conceit, but the book was surprisingly okay. It had good exercises for what to think about for every stage of dating (what are you selling, what are your stengths, what are you looking for, after a chapter how did that change what you're looking for).
The attachment theory part of relationships was most new to me. It divides people into "anchors" "islands" and "waves", though its clearly trying to use neutral language anchors are definitely well-adjusted in their world. Islands were raised by parents that conditioned love on success or were distant. They tend to be high-achieving but in relationships fear dependency and can come off as distant. Waves were raised by parents who had co-dependent relationships with their kids. They tend to be very emotionally aware. Relationships that lack an anchor tend to be harder to make work