Dadisa is not at fault when she wanted to see Anandi married or Jagya married or now for wanting Gehna to be married again.
If she found someone suitable tries match making with that person also there is nothing wrong in it like creating opportunities so that they will end up with each other get to know each other and finally end up together.In fact that is something very nice.
But the fact is that she goes beyond all this and uses their emotions and forces them to do what she wants them to do and that is what is not acceptable.
Anandi - Shiv the beginning was nice where she created situations where they could meet and it was cute sweet and thoughtful too. But it didn't end there she proposed to Shiv on Anandi's behalf without even telling her that she is thinking of getting her remarried. When she didn't agree she used Anandi's mother who is heartbroken over the fate of her daughter's life and guilt ridden to blackmail Anandi into marrying Shiv. Which was so not acceptable at all.
Even for Jagya she wanted a partner.She felt he was lonely and she wanted him to have a companion.Her reasons for wanting Jagya married is because of the Anand that has gone out of his life not just because she wanted padpota.Again here she used Anandi to get Jagya to agree for a marriage. Anandi was forced into marriage with Shiv and at that time she was high on her newly discovered love for Shiv.😛😆So Anandi thought what worked for her would work with J too.He wil find happiness just like she did.😛😆Jagya agreed because he was already unsure of himself and what he wants in life and on top of it his guilt feelings towards his family and Anandi made him weak enough to give in.
Now Gehna - After Basant died she made Gehna incharge of business then Niranjan appeared from no where and this plan got hatched in her mind that Niranjan is the guy for Gehna because she was very much aware of the past and how they shared good rapport etc. Here she created situations for them to interact with each other and to made sure that Nandu also interacted with Niranjan.
Here she used Basant's feelings for Gehna and Nandu's growing proximity with Niranjan to force Gehna into agreeing for marriage.
All three scenarios she used same plan manipulated their emotions and made them to agree for marriage which is what is not acceptable.
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Dsa ended up as independent woman because she had no choice widow remarriage was unthinkable for her and she ended up alone managed alone in life.So she knows what it is to be without a partner and for her leading a life with a partner is an ideal way of life and she tries to find partners for every body.
Her intentions are not wrong but her methods are wrong.