I personally don't think, dat 2 take revenge from angad Kripa is sleeping wid Pritvhi. I think she genuinley does not want him 2 be hurt by her dats why she is taking such a step. Angad in my opinion has left no option 4 her as he keeps taunting her bout her marriage wid pritvhi.
Don't forget Pritvhi has caused misunderstandings between K and A. Dtas why Kripa hates Angad. Pritvhi is da real villian. If he truly loved her he wud tell her da truth before she slept wid him