If someone gets in Jannah

If someone gets in Jannah ,let's call that person A and a person B.If A loves B ,and he wants to have her in his afterlife but let's say A got other preferences...whos wish gonna complete? Consider A and B parted ways in the dunya after A made some serious mistakes,but A did apologise with all his heart in the dunya to both B and Allah (swt). Jannah is fair for all..so whos gonna get his wish completed?