Rav, if a man puts himself in a situation of sinning bemezid, and then walks away from the sin at the last moment. Does he have to do Teshuva for putting himself in a sinful situation?

It was a sin to do that but if he walked away, pretty much OK. Yosef walked to sin with potifar’s wife but regretted at the last moment. R Elazar ben Durdaya went to do the aveira and retracted at the last moment, and both are considered righteous.