Wants to know which laws are applicable for punishment

I had been in relationship since 2 n half year everything was good we even went physical several times he made marriage promises untill he started loosing interest saying that our natures didnt match now we broke up i went through depression after that 2 months later he approached and we started dating again he said we should give a chance again we had physical relationship then after few days he ditched again saying nothing is matching again he bluffed me on the name of love twice i really feel disturbed mentally as well as physically he broke my trust twice i would to seek your help in getting to know what are the legal ways to punish him how can i approach? Help the needy asap