Did you like forget that Rajeev has some sort of an enmity with MJ and that’s the reason he’s working with Maya not because he’s her best friend or anything? So I guess you can say he’s taking advantage of Maya as well. 
Coming to Nandini, Maya takes care of her and she loves her like how any child would love their parent. 
She used her only once and that was just to get Rudra to chase after her, moreover Nandini herself wanted the same thing, that is MayRa coming together, so I don’t understand how that is doormat relationship? I mean you’re talking as if Nandini doesn’t matter to Maya at all. 
Ananya is taking advantage of Rudra’s guilt, pretending to have forgiven him or that she cares about him to come and get under Maya’s skin simply because she hates Maya for losing Rudra to her. 
Moreover she was behaving like she didn’t want to have anything to do with Rudra since he married another woman and was just his best friend so she could marry him.
She ate Maya’s cake and he allowed her, so he’s doormat too now.
Coming to Rishi, he faked cutting his wrist once to make Maya to rush towards him, then he bought her an expensive bracelet with his parents money, it’s just like Antara said, he never got his mom anything but easily gifted his supposed girlfriend and expensive gift, so there you go one more doormat relationship to the list.
Edited by Rein123 - 5 years ago