i don't believe that testosterone has anything to do with affection and intimacy. those emotions are between a man's ears than his legs. more than half of the people in this world do not have testosterone or extremely low levels. women and children for example. and they show plenty of affection need cuddling kissing and share lots of affection. if a man were surgically castrated for whatever reason this should not adversely affect his ability to show any of these important (and vital) human emotions. this issue is less likely to be biological and more likely to be psychological but it can be complex. while that may be difficult for a man to accept he often will need to be reminded that his biggest and most important sex organ is his brain. if he needs help a counselor can really help (if you can get by the stubbornness and get him (or you) to go).
can low t affect a man's ability to show affection (not sexually)? . showing a level of intimacy that does not lead to sex. for example touching cuddlying kissing a desire for giving and receiving affection.