These tips will help you overcome it.
FIRE: Grab a pen and two pieces of paper. On one page, write down everything you will not miss about this relationship. This list includes snoring, mouth open chewing, and boring family members. Be honest and truthful. No one is perfect and not everything about another person will be right for you, this list is the place for all of that.
WATER: Fill the bath tub with hot water and about a half cup of table salt. Use your favorite fragrance or candles if you like. As you settle into the tub remind yourself that water absorbs. See the hot, salty water absorbing the remains of the relationship. Lie back and cry or be angry or jealous or hopeless. Let whatever needs to come up, come up. Allow the bath to absorb all of those feelings. Let the salty water draw it right out of your skin.
CUT THOSE CORDS: Energy connects us like string, it makes cords between us and another person. Dump a handful of table salt into the toilet bowl. Use an Arrowhead if you have one, or a dull butter knife will do fine. Run the palm of your hand across your belly and grab at the hip as if you are holding a bundle of cords. Symbolically, cut those cords with your knife and drop them in the toilet. Do the same across your heart and the small of your back and anywhere else where it feels right. Cut those cords and when you are done, flush them away. Bye, bye now.