When should the emotions die down?

[AlwaysSAI]

I don't remember where I heard it, but somewhere I got this piece of advice.

"You should grieve a relationship one week for each six months you were together."

Personally, I'd say it took me about 8 weeks to stop crying everyday about my ex. I was alright with the break-up. It's when I found out the true reason that I really fell apart. It was really hard for me to come with grips with the fact that he left me because he thought he was in love with someone else.

Sometimes, I still think about all the good times we had and all the memories we made. He really meant a lot to me--I guess you'd call him my first love.