The best way to get back at someone WHO betrayed you.And left you isn' to find a new partner，On talk badly about them everywhere.Instead you should focus on doing this three things，If you do them you be the ultimate winner，First stop pay attention to them，Since they chose to betray you，Whatever they do，Whether finding new love，All having a worse life than you.It's all irrelevant to you，You only task is to control your inner self，Even if you are reluctant，Don t waste your precious time on the wrong person，Remember the highest form of punishment is silence.The most elegant revenge is the ignore，Second make peace with yourself，Remind yourself that you are great，And their failure to cherish you is their loss，When you start missing them，Ask yourself if they really treated? you well?If they didn't，Then there's no reason to hold on to those feelings.You are not losing someone important，You are just feeling regret for wasting time on them.The truth might be that.You are the one struggling let