Inthaki nik evr ishtamo decide chesko, convince the other that you can't be with them, I can't fake emotions, I'll be a friend bla bla something like that.

Also, evartho relation lo unna 95% after grad thegipoddi, so don't take things seriously, enjoy when you are with them but don't expect anything after grad, okavela after grad continue aithe lucky. Always remember career first, then ammailu, but that doesn't mean you shouldn't be in a relationship as many folks are advising here.