When his suspicions about Prachi and his brutal behaviour as a result of it were proved wrong the first time the guy tried to make amends by venturing out in the torrential rains to buy that white saree for Prachi - a symbolic gesture of how he wanted to restore her honour (after the near rape) and how pure he considered her to be.
The second time he was proven wrong, in the misunderstading over Suki's elopement, the guy went against himself and gave up his self-respect by pleading with Niharika to take Suki as her daughter-in-law because it would make Prachi happy. A man who never bowed to anyone, bowed to that slimy lady, all for his lady love.
The third time he was proven wrong in the whole PIM issue, he tried to make amends by marrying her all over again. Looks like that was not enough to make good all the weeks of torture he put his wife through under the misconception that she mothered a child (never mind that his wife did nothing to dispel his belief but on the other hand was responsible for it herself). So they have decided he should risk his life to save hers to show just how much he loves her.
At this rate I hope they dont show us any more misunderstandings from Milsi's part atleast. He has already run out of ways to make amends - he has braved the weather gods, he has bowed down to materialistic vamps and now he has put his life at stake to guard hers from a mad woman. Each act was one up over the other. Now there is nothing which is higher than life he can gift his lady love the next time he wants to make amends after a misunderstanding in future.
So Snakeman stop the torture and reunite our jodi for life.