(1) Bi Polar Boyfriend just broke my heart. Help?

(Part 1) Hello everyone,
I'm a brand new member. I'm sharing the recent painful experience of splitting up with my Bi Polar boyfriend in hope that others may be able to help. Others who may perhaps have had similar experiences, can offer similar accounts, any facts, advice or wisdom. Also - How can you mend a broken heart?
After being single and bringing up my son on my own for 10 years, I was happy, great job (my own business), solid family and friends. Too busy to be going out actively looking, not doing the internet dating thing etc. I had the odd dalliance, but I hadn't met the man for me and my son. Also I was cautious due to my previous relationship 10 years prior with my son's father. With that backdrop, no publically affirmed relationship to speak of in a long time.
Then I met the perfect guy for me, it was a crash, bang, wallop affair.
After seeing him in public places like a local department store every 6 months or so for a period of 3.5 years, we met at a music festival nearby at the start of the Summer. Since then we spent everyday together (and every night possible). He's the same age as me, he has an 18 year old and a 15 year old. He's been single for 7 years. The many ways in which we were perfect for each other are too numerous to mention. If I had sent out a cosmic order for a guy, it had been manifested in him.

Everyone one is "perfect" when you first meet them.