Yeah, you may not be able to move on. Not a month, nor a year the pain sticks with you for a very long time and everything that's related to him/her pains you.
Life goes on no matter what. You have to keep going, do what you always do. Go through the pain. After all "the strongest person isn't the person who exercise daily to be strong, but the person who is able to put a smile even if inside he/she is broken and not fine at all. that's strong"
To be able to go to the good life, get through bad life first.
