Asalam o alaikum sir I want to know if a person got physical relationship but he is will to got married to this girl but he had an other girlsfriend whom not allow him to do this. What he should do?

What can the other girl do to stop you from marrying the girl of your choice? Does the girl of your choice know of this other girl and your relationship to her?

Having physical contact before marriage is a problem , but in this situation the best option is to tell your friend :D marry the girl and forget about the second one