That is exactly what became his hope loons...the person that ashi is...and you worded it soo perfectly!! It was the reason that he knows how much she belives in following her heart...and hell whatever, he knew that her heart wanted him!! He soo knew it yaar...and that was the only guiding light to his hope...and even now he has this hope that she would come back to him...but he just won't voice it...coz he has accepted that ashi needs self-belief to love him and trust him!! And it was this hope only, that allowed him to gain her trust back on him as a person and later as a lover too!!!
And it was during this scene itself when Yuvi actually realized how selflessly ashi loved him when ashi said...
"Yuvi main janti hoon ki tum hurt ho rahe ho...I know it!! But for once...for once yuvi...main tumhare baare mein nahi...apne baare mein sochna chahti hoon!"
^^It was during this moment when yuvi realized how selflessly ashi has been loving him throughout...and now it was his time to love her selflessly...by giving her the time and space that she required to regain that trust of loving him that selflessly!!
And the best part is...that ashi would still go on loving him selflessly man...but was just unable to dream again...hope again for the love...if you get what i mean!!
And mads you soo said it yaar...i agree with you totally and it is exactly when ashi says that he realizes that he LOST her!! He totally felt those ghosts coming back to him..just look at his expressions in these pics:


For a moment he wasn't even looking at ashi...he just couldn't believe what he just heard...it was like he was looking back in past...and he just couldn't believe that argg what he just lost...it was like his freaking soul was leaving his body...and he just couldn't do anything...any freaking thing!!