A dog I dislike but who seems to love me!

My daughter and grandson live with me along with their 25lb rat terrier. I dislike this dog. For some reason, he likes me,,, a lot! He wants in my bed, when I sit down he is right there looking at me with his big, brown eyes and his whole body waging at me. All he wants is for me to pay attention to him. Is it my imagination or do you think animals instinctively know who dislikes them and so they go out of their way to get your attention and approval??