I am sorry to hear about the breakup. They are hard, I know. It all depends on what kind of reaction you would like. If you want to attract someone who you can date long term or just someone to bed. If you need help opening up I would try Instant Honesty and Instant Shine (for you and them).
Just remember to read this: What pheromones can and can't do: realistic expectations for newcomers. No offense but many men exaggerate their “scores”. Ever hear that the people who talk about sex the most are having it the least? Don’t worry about them.