This movie made no sense

I know better than to analyze a lifetime movie, but here are the flaws I noticed while watching:

Once the husband knew the friend had evidence, he should have tried harder to get it before abducting her. Once he did that, his plan was over, and he had to kill her because she knew too much.

Once she went missing, the wife and her fiancé would have gone to the cops because they were in too deep, and the husband was already a kidnapper and maybe a killer.

These theories were moot once he revealed that he was going to kill her in the ski loft. If everybody died, he could have had the cash and maybe a chance to get away with it.

The end was the clincher when she offered her hand, and he let himself fall?????

I guess they wanted some reason to kill the movie in under 2 hours at that point