Burning clove is often used to drive away hostile and negative forces which could also be contributed towards heart ache. You can try smudging the home with clove. I also have recommended in my book eating an apricot will give you a sweet disposition, which might help their outlook on moving forward and recovering from the pain associated from a break up.
While I don't have any specific spells for heart ache recovery, there is the method of carrying around two adam and eve roots to attract love as well as being free from competitors. Most people I will sew the roots into a small bag to carry more easily in a purse. Lastly Allspice is used for healing and I have used it for mental healing as well. There are many different ways to use it, I generally make a chili using it as one of the main ingredients for people I am assisting.
I know you were looking for a spell, hopefully someone will comment that might have one. Hope some of this information helps.