My Heart Still Yearns for Him-Seeking Guidance Through Dua

As-salamu alaykum. I've poured my heart out in Tahajjud, on Laylatul Qadr, and on the Day of Arafah, asking Allah to unite us in marriage. But he doesn't feel the same-we've parted ways. Yet, my love hasn't faded. I try to change my duas, begging Allah to remove this longing if he's not meant for me, but the ache returns, and I find myself asking for him again. He has many flaws, but I still love him deeply. Then doubt creeps in: what if my duas are in vain? So many people in this world never end up with the ones they loved. I'm torn. What should I do?