Yes. Just like you have to constantly stimulate your mind to stay sharp, your muscles require consistent movement for your body to be in balance. Through inactivity, muscles atrophy and joints lose...
A keep is a square structure that could easily defend. The keep was also thre tallest and strongest structure in the castle. It was used as the last line of defense during a attack or siege.I hope...
You cannot force someone to be where they may not nor can you make them feel something they do not. With that being said, try talking with him and telling him how you feel and see how he responds....