I am happily married with 2dc and we've recently rented a gorgeous family home which is perfect for us.
I've just looked out of my window to see my ex who I was with prior to dh who I was totally besotted with although it was a very on off thing for 4 years
He's living 3 doors down 
My dh knows the history with the ex but doubt he would recognise him but there was a question mark over my feelings when I met dh so he wouldn't be happy with the situation but my question is should I tell my dh?
I'm not bothered by the fact the ex is living nearby I have no feelings anymore it was years ago but I feel it might put a strain on my marriage when we are in such a good place.
It's been quite a shock (I'm from 100 miles away and it just happened that ex and dh are from the same city not linked)
I've even said hi to ex's new wife/gf before realising 
Wise mumsnetters help!