my best friends dog attacked my kitten putting me hundreds of pound in debt!

so my kitten doesn't get in my my old cat so I'm trying to find a nice home for him to go to, my best mate has recently had a kitten and a puppy which get on so well so she asked if she could take my kitten to see if he's get on if so she's have him, well she brought him back but 
 ade me go out to the car to get him I brought him back into my house and as I'm trying to get him out the cat basket he is hissing at me and hardly moving I get him out and give him a cuddle to realise my top is covered in blood inspecting him I found multiple puncher wounds and tried to wash away some blood to see what has happened I'm left in hundreds of pound in debt as I didn't have the money to pay and has to sign an agreement, 
my so called best mate still Denys anything happened and hasn't even apologised or said she'll contribute to vet fees! 
an I just brin over the top or is that out of order!? 
my poor kitten was lifeless he's so scared of any noise and person now he WA the most playful and mischievous kitten I've had!