Typical revenge fantasy but with bad writing

This is a revenge fantasy directed at women who have been cheated on and fantasize about revenge. It's a comedy, so we aren't supposed to take it too seriously. But it misses the mark becuse of a lot of sloppih writing. For example;

1 - the third woman instantly becomes friends with the other 2 and seamlessly cancels her weekend with the man without him even noticing. This made zero sense and was sloppy and contrived

2 - the wife starts drugging/poisoning the husband with hormones, etc. This is a dark and troubling angle, and at first seems like an opportunity for her to back off and say "this isn't worth it" and become more mature about the breakup, but that never happens. She keeps drugging him until they break up without any ramifications. It had such a weird plot point and timing

3 - the wife was really dumb the whole movie, taking about going to brain camp, etc. Then, a light bulb goes off and suddenly she is a brilliant ceo,very successful, etc. Lazy writing, instead of showing a gradual development etc it was instant fantasy

Several other things didn't work either - Diaz is basically a woman who sleeps with the entire town, but she draws the line at married men. Wouldn't it have Been better to make her a little less promiscuous so her outrage would be more sympathetic?

The entire movie was poorly conceived. Had a decent cast and shoudk have been significantly better