Known DH since I was 11, starting sec. school.
Same English class EVERY YEAR, and for the 4th and 5th year, he sat in front of me.
After GCSEs he went to the Tech College, and I went to VI Form to do A levels, but kinda kept in touch because not many people from school went to his college. Turns out it was shit, so by the time I started Upper VI, he was enrolled in Lower VI. He fell right back into our social group, and by Christmas, I realised that I really quite liked him. I told my mate this just after Christmas, but I don't think she told anyone else, but he finally took it upon himself to ask me out at the Feb half term, but I thought he meant that the whole of our group were meeting up, and he was just co-ordinating.
I was a bit 
when I walked into the pub, and there he was with TWO of our male mutual friends. Anyhow, we stayed for a few drinks, and then DH invited us back to his mum and dad's for free drinks rather than paying pub prices.
Friend number 1 decided to depart at this point, saying that he was going to go to bed in order to spend some time revising the following day. Friend number 2 kindly accepted the invitation, as did I, and we went for homemade Bailey's 
A Clint Eastwood WWII film was on at his mum and dad's and we watched that till about 2345hrs, at which point Friend number 2 decided he had provided enough support and also went home.
It was then me, him, and his mum and dad. I find out from Dad that my mum went to the same school as them, but she was 5 yrs younger than DH's mum and 6 younger than his dad. It turns out on later questioning of my mum that she used to watch my now MiL and all her 5th former friends, who were all tall, elegant, gorgeous, etc, etc (This is 1964/65 ish, btw) and she was a little 1st former, too scared to "personalise" her school uniform in any way -YKWIM!!
So, the film, and the history lesson finishes, I say good night and DH walks me the 1/2 mile or so back to my parents' house. When we get there, we lurk in the back garden for a bit, neither of us not knowing what to say, but not wanting it to be "good night" just yet. After about 5 minutes of clawing at the air, thinking of things to say, he says that he has quite liked me since about Christmas, and would I consider going out with him. I say yes, I would, and we have a quick snog, and when he calls round the next day (a Sunday), we actually spent about 8 hours with our mouths locked together.
My mum and dad had gone to visit my dad's parents a 2 hour drive away, so we were alone all day. We saw each other every single day for the next 6 1/2 months, until I went to uni, while he finished VI Form, and just after I started my second year of uni, he joined the RAF. I did a total of 4 years at uni, for teacher training, and then we got married, which is now 12 1/2 years ago, and in about 18 months time, we'll have been partners in crime for more than half our lifetimes.
His mum and dad are still happily married, celebrated their 40th WA last month, and I think they are pleased that one of their 3 offspring is settled. Their 2 daughters still live with them, and so does the 4 year old son of the older daughter. I don't think it's what they were imagining for their 6th decades!!
My dad remarried after my mum passed away 13 days after we got married, and my step mum is actually really nice - shame about her grown up kids, but you can't have everything!!!