I am sending prayers that you overcome your illness and stay strong!
We (dh and I) have had two girls and three boys pups over the years. The boys are alway attached to me and the girls to him. I will say our little yorkie is attached to both but just a wee little bit more to him. I think it is because he plays with them more, and I do the bad stuff like baths and brushing
You have received good advise... and I wish you the very best