Been with my partner 6 years next month, 4 children together.
Youngest child is only 3 months old, I was sterilised at the time of her birth. Found out that it hasn't worked and I was pregnant then miscarried (just to set the background)
In October he told me he felt like just a person who had completely lost his identity. He said we had got lost in being parents that we weren't romantic towards each other and it was like having a best friend (3 children at the time with no family support so date nights alone time wasn't ever a thing)
I had a gut feeling he was speaking to someone else so I checked his phone, admittedly I got obsessed with doing it.
He was speaking to a lady he had known for years and for some reason chose that time to admit he did used to have feelings for her, she ended up in hospital and he went behind my back (didn't tell me until I checked his phone and seen the messages) and got her sweets, magazines, Teddy bear and dropped them at the hospital which annoyed me to no end as I was in hospital the previous week with a suspected DVT and I didn't so much as get a "are you okay" text 
FF to now, I can't really forget the messages, we aren't happy, we get about half an hour together a day, we can barely have a conversation because the kids will be there interrupting.
I've completely lost myself due to having my 4th, depression has hit like I've never experienced. I go days without showering, I can't be bothered watching TV I don't find joy in anything
I don't really know what I want from posting here, please be kind as I'm extremely fragile. We were supposed to be getting married next year and I don't know how to get back on track 