Yeah makes perfect sense My.
I know its hard bc ive been there myself but it was my own doing, i messed up what was meant to be.
You are only feeling what every normal person would, but poss' creating a habit of focusing on that aspect too much, especially with listening to tunes by Cold Play, but you already know that so you can fix that one.
Im not a big one on this stuff, but i read your post and felt like saying something.
Its just a natural part of a break up and it'll pass, so you just have to look forward for your family now and make things happen when you need to.
Best wishes S :-)