Should I have informed HMRC?

[joliejoleen]

NC for this.
My exDP left me at the end of May 2016 and went abroad. I phoned up tax credits to switch to a single claim. About two months later he got in touch saying he missed me and wanted to try again. He moved back in mid-September but moved out again a few weeks later because it just wasn't working out. The same scenario happened again in December.
Should I have notified HMRC of the instances that he was staying here? If he had actually stayed for longer than a month, I would have called them up and said that we were back together. But that was never the case as he kept walking out on me and staying with his dad/friends.
Plus I could never really count on him as he was always in and out of jobs - no stable income (the very reason why 'it wasn't working out').
Thoughts?

If he was not contributing to the household and was just visiting while being a PITA, you have not gained financially from his "visits"

Change the locks and look forwards

Oh, how I wish. I'm in tonnes and tonnes of debt because of him.

Ah, look up my spreadsheets thread on this board and make the credit card debt evaporate without pain

I shall