Relationships, particularly on the human level, can be rather complicated. We all know people who can be quite difficult to interact with. I suspect that during the course of your life, you have probably been forced to interact with some people who may have been hurtful or dishonest with you. Maybe you've also been attacked or betrayed. That certainly isn't pleasant, and while we're called to forgive those who have hurt us, I don't think anyone would blame you if you felt like there were certain people that you were better off not interacting with for your own well-being or safety.
At present, I have several friends who have admitted to me that they're at the point of life when they would strongly prefer to interact with their pets than with other people. It's hard to blame them, but I think Scripture shows us things that can help us navigate the complexities of relationships, even if we've been hurt in the past.