Of course women long for intimacy more than men. I read some relationship book that talked all about how even as babies boys cant handle eye contact for more than a few seconds. Boy babies will fuss if they are stared at - it overstimulates them. Girl babies will be cuddled and coo for hours. B pulling away or being more ambivalent may just be because he cant handle real intimacy. Again thats OK - thats who he is. You just need awareness not to take it so personally.
Weird I've never used the word 'ambivalent' much!
Boys do long for intimacy too. But because true intimacy overstimulates them - send too many hormones through their body. They sort of reduce intimacy to sex. (Is this in the passionate marriage)? And B had a thing with sex hey?
So you get to choose - do I want to wait for someone that is going to pull back from intimacy? Or do I want to look for someone that is more tolerable to intimacy? (knowing that you will know how to hold onto yourself much better in a new relationship, which will influence the outcome). Choice is yours, and clearly there is no wrong or right!