Most Helpful Guy
If you want to be a bitter pyscho with no self esteem, sure. Alternatively, if you want to be the bigger person and be mature then just accept that bad things happen sometimes and use the experience to strengthen yourself for the future.
Most Helpful Girl
Why get revenge? Revenge is a immature concept that makes you no better in principle as you are using the same antics to motivate you. Get even by spreading good karma by letting them go for good and moving on!!