My mom was like that too! She was not an animal person at all so when I moved back home to finish college I had brought my little yorkie girl. ( Which I bought when I moved out the first time) She was very hesitant and when It was time for me to move out my mom would'nt let me leave with her.
At first she would'nt even pet her and before I knew it she would go to my room asking if Minnie could sleep with her tonight. ( ended up being almost every night.) So before you know it she'll fall in love with him just like my mom.