Breakups can be tough, especially when it comes to finding the right words to describe your ex-partner. While the term "ex-girlfriend" is widely used, there are plenty of synonyms to choose from. You could refer to her as your former flame, former significant other, or former love interest. If you want to get more creative, you might call her your ex-beau, former boo, or ex-paramour. Alternatively, you could use slightly more casual terms, such as ex-lady friend, ex-sweetheart, or ex-babe. No matter which synonyms you choose, just remember to focus on moving on from the past and finding happiness in the future.