My ExH and I seperated 2 and a half years ago after he had an affair with a business client and has married her and just had a baby.
I divorced him last year and we went to court as he refused to employ a solicitor and court wanted to check I wasn't ' taking advantage of him' in the divorce settlement- hilarious as this was a man who cashed in his pension before announcing he wanted divorce so I couldn't make a claim on it ( oh and spent it all on himself and OW) he'd had all cash dealings due to own business - I know 
Hohum, that's not even my problem- during the court hearing he was ordered to pay an amount of cash - a few £k he'd said he would pay to me - and the proceeds of insurance policy we had taken out for the children's university fees.
He's not paid a single penny since the hearing ( though paying some
pittance maintenance every month) so do I just drop it and assume I will never see a penny - I don't have much money and my contract ends in June when I may well be jobless and just write it off or do I keep fighting even though I know I may never see it - find it really hard to decide if I should just move on or fight the narcissist?