Thanks GreenFamily !
Found the meaning:
To see a coffin in your dream, symbolizes the womb. It also signifies your thoughts and fears of death. If the coffin is empty, then it suggests that you are having some irreconcilable differences. Alternatively, the coffin represents ideas and habits that you are no longer of use and can be buried.
To see a body in a coffin, signifies that you are going through a period of depression. You may feel confined, restricted and that you are lacking personal freedom. There may be a dead or decaying situation or issue in your life that needs to be addressed. It is time to end this situation or relationship.
however I do not remember anything of a relationship I had, didnt have any boyfriends or anyone I was interested in.
I will have think about it for awhile and see if I can remember anything "different" in that time.