Has anyone ever tried to look for a ex-girlfriend/boyfriend after many years of not seeing each other? I am wondering if it is a difficult or complicated thing to do? Any advice or ideas would be helpful!

Thanks

Hi, edwina,
Here is a link with good information with which to start:
http://www.virtualchase.com/people/index.html
There are also other links, such as classmates.com, which are not free.
I do wish you the best of luck.