Ex Partner wanting money

biddogg1984

2 months ago I spilt with my partner, it went ok and we continued to be friends until about a week ago. 

Now she's demanding £20 a week for Guinea pig upkeep, I'm not allowed to see them and they all live with her .

She is also asking for payment for a shed which her mum bought us whilst living together to house these guinea pigs 

And a £200 vet bill her mum paid for  which was over 1 year ago.
 Even though I paid for our car for 1.5 years .
 Saying her mum wants the money back 

Is she right to do this ? I agreed to make contributions to there food but not the shed or vet bill.