When people are in love they express it in many fascinating ways. But when it comes to dealing with betrayal some people forgive forget and move on; others suffer in pain and get isolated; yet few others take up means of revenge.
Revenge helps them to throw out the vulnerable feelings, agony and sorrow that they are going through. To a certain extent they feel relieved when they express their emotional pain and the ill treatment they suffered by someone whom they trusted and loved. One kind of the revenge some people took help of was via the posters and billboards.