When I was in a relationship I took out a loan for £21K to cover both mine/partners debts. Partner couldn't get credit. He had a good job self employed as plumber/gas engineer. However, he didn't repay me much back to to lack of work & then went employed, then self employed. He is shit with money & has addictions, borrowed money off other people & they have put the screws on to be repayed. I kicked him out yonks ago but I still want him to repay his half of the loan but we don't have an agreement written up. WHAT CAN I DO?