Yes, women seems to be attracted to guys with dogs. As a guy, I have a dog, every time I take him out to dog park without my wife, I get hit on.

But dogs are so much work and they are needy. If I had to do over, I would get a cat. My friends with cat can take wknd trip without taking or boarding their cats. Sometimes, they have no idea where their cat is.

My guess is having a dog is not about masculinity but it shows that this guy can handle responsibility and needs of others.