Anyway, about the story, truly it is a sad one. But I do understand the point of the "should be groom" because maybe he is really just trying to help and feeling down that he only has 40 percent on their contribution. This is pride and ego and not a gambling addiction. Maybe he is cornered and trying to find ways to help but he made a mistake in putting it in the gambling way.
But on the "should be bride" side this is of course a bad decision and she will probably just end their relationship because of this mistake. It's the right thing to do because what if they are already husband and wife and they have money saved for their mortgage payment or bills then the guy gambled it again just trying his luck. That will make her regret her decision to wed him and they will just separate, it's better to do it early while they are not yet one.
He decided to take up the shot but he didnt think that the risks isnt really just that on losing money but also he would really be losing his soon-to-be wife which i couldnt really take
up such risks and its better to swallow that pride because there are really things which arent really needing or wise to risks on and which causes for your entire life kind of regret.