meher and preet never liked each other in the beginning preet and ash liked each other and meher liked harman but harman liked maya, when maya left harman to die, meher saved him and he realized meher wa sthe one that he is going to spend the rest of his life with, preet knew that maya goal was to take harman away from the family as at that time they were going throught financial problems, and lalit also was balming preet for prems death and everything wrong that was happening. At that time veer'a marriage was going to happen to rishab rampal who wanted to ruin the juneja at the last moment nihaal brings evidence against him but at that time lalit finds out that preet had put the house for a loan and rishab has the papers for it rishab chalenges lalit that he wont be able to find a guy for veera, whihc lalit says he will but rishab shows some pictures of veera and him in intimate positions, nihaal tells them he will marry veera but only on one condition t hat one of his siters have to get married before him, heer didnt want as she only belonged to prem and he died, so harman agreed to marry meher, but meher didnt want to as she knew he loved maya but harman wanted ot marry her. Llait said both marriages will happen on the same day, maya commits suicide, where harman goes to see her, her dad makes a proposal for him, he goes back to tell his family he wont be marrying meher. Lalit was about to commit suicide where kulraaja nd kiran come and tell him that harman came back after the marriage is done he goes into harman room to find out harman clothes are gone, he goes back to find out preet married meher.
Ash comes back after seeing his mom, anf finds out preet married meher, ash is meher and heer's cousin, daljeet meher and heer;s chachi comes back and the whole family find out that rishab has sold the house to ash and now the whol family started to get tortured by ash and her mom. Ash gets attacked by some guys and preet saves her, meher and preet takes care of her, thats where ash realzes it wasnt preet or meher's fault and thye all made up, but then harman satrted to come back to the house wher emeher felt uncomfortable, and pree tknew that, when preet found out that maya insulted meher infornted of everyone saying that she is still after harman and also finding out harman stood there quiet, harman fought with both maya and harman.
They both started as friends but now they have started liking each other but havent expressed it to each other, but now ash is also back and i saw the way preet felt inscure hope noting wrong happens as no matter what she is still Daljeets daughter but hope Ash is there to help the sisters. Hope that helped you out