lol...with all due respect to everyone's opinion i think we can interpret this as individually as we like just as we do with movies and books.
I think its a mixture of many things. I def think its guilt based on today's dialogue. However, there's some jealousy hidden because we see her expression every time Armaan and shilpa are close. She gets at least somewhat annoyed. And i mean if she saw love for armaan in shilpa's eyes shouldn't she be happy that he has a chance with another girl.
And yes i also agree that she has some control issues. I personally don't like her interactions with Sid. She's very domineering. And although i absolutely would love for a woman to be in control in a marriage 😆😆😆 being control freak isn't what i would like to see. She thinks that what she says is right. Just cuz she has seniority than Sid. I know she loves Sid but not as much as Sid loves her.
I also know that she probably does not love armaan anymore like she used to but she truely cares for him.
So with a combination guilt, jealousy, control, and caring the final outcome is what we see in Ridhimma's character.