1) how, why did pooja get married to ashmat, whn she loved ronit?
Pooja got married to Ashmit, because after Poornima and Ronit's marriage, Poornima suspected Pooja and Ronit's relationship, and practically forced Pooja to get married.
2) how, why did poornama married ronit, and why did he agreed to marry her when he loved pooja?
Ronit married Poornima, because he thought he killed Milind when his car only ran over an already dead Milind. Reema was the person who actually hit Milind with her car and killed him by accident, because she was high on drugs. When Ronit carried Milind's dead body to the mandap, Poornima was shocked. Since Poornima was pregnant with Milind's child, Ronit married her to save the Mehta pariwaar's izzat.
3) why is poornama pregnant with someone's else kid, wht is the story there?
Poornima used to love Milind, but then he died.
4) did ashmit and ronit used to be friends before he married pooja?
Yes Ashmit and Ronit were friends. They were actually business partners, and then they found out that they were step-brothers. and there was hatred because Inder left Ashmit's mother because of misunderstandings, but everything is clear now. And Ashmit's mother is not alive anymore.
5) who got married first: ronit-poornama or pooja-ashmit?
Poornima and Ronit got married first.
6) why did pooja agreed to marry ashmit whn she loved ronit?
Pooja agreed to marry Ashmit, because, after Poornima and Ronit's marriage, everyone found out that her and Ronit loved each other. Poornima began to accuse her and everyone suspected her, so she had to get married.
I hope that helped😊