take my Salam. I have a question regarding pre-marriage affair issue. I have one muslim female friend who were is a relationship with a muslim guy. both of them used to pray 5 times namaz, highly bemaintain halal & haram .Except their relationship, they dont do anything wrong. they also believe that this pre-marriage relation is not allowed as well as fair. that girl loves that boy & the main thing is she trusts him blindly. though they are always afraid about this relationship issue and islamic rules which conflict on their mind. that girl prays to allah for pardon her for being in a affair and wants the blessing of allah so that she can marry that boy. that boy loves her from the very beginning. he promised her to be together forever. even they kiss each other. but then they asked touba for that. after 6 moths relationship that boy went to abroad. then he realized he had done great sin ny being in a pre-marriage affair. So for solving/ recovering that sin he left that girl. he breaks that love and relationship. That girl could not believe herself that he can leave her. she got trauma. now she doesnot talk with anyone, even she doesnot get anything whats going around her.
Now my question: is that right what that boy have done? for purifying from sin what he did, is that not more sinful?