<human>: Can you give me a shortened version of the text?

My boyfriend and I have been dating for over 2 years. We currently live together with our two dogs and are very happy and very much in love. We have a very open relationship and tell each other everything. 

A few days ago while lounging with our dog he said something that really freaked me out and I can't stop thinking about it. He said: 
"he's so cute (talking about our dog) I just want to snap his tail" 

I asked about it because I thought it was a really weird comment. He said "it's like when you see a cute kitten and want to squeeze it." I asked "you mean hug it?" And then he said the part that worried me. He said "Don't you ever get the urge to hurt animals?" 

.. What? I told him that concerned me and asked him if he has ever hurt an animal before. He told me no, and I do believe him. But he could clearly see how uncomfortable that made me. He tried to justify it by saying its a "guy" thing. 

I am really worried and can't stop thinking about that conversation. What urge? Wft am I supposed to do now?
<bot>: my boyfriend asked if I ever get the urge to hurt animals and justifies it by saying its a "guy thing".. I do not think this is normal and I don't know how I can help, if at all.