There are instances where people have committed suicide out of infatuation.
People even send love letters in blood to their favourite stars. Unfortunately after all that heroic activities that thing remains infatuation only.
Infatuation is always one sided. It doesn't care to know what the other person think about it. Its kind of obsession. Thus, Jetha loses all his senses when he is with Babita. He doesn't care to know that Babita had a love marriage with Iyyer.
Love on the other hand is divine even if it is one sided. Love teaches to respect your partner. Its love for Daya only that makes Jetha bear Sundar and his forgeries. Its love for Daya that made him bear the loss to make Daya do garba during Navratri.
I agree the makers are stretching this Nirdosh liking of Jetha way too far. It was nice in the beginning. There is used to be a show called Shriman- Shrimati ( Doordarshan). They played the same card but wisely and without stretching it too far.
The idea behind Jetha's character was to make a hypocrite Indian man. One who is not respected at home but he finds ways to be popular outside. But after so many years they have messed up this character big time.