What a lame ending. Spoilers
She suddenly quits her job just when she's about to be promoted to president and says she never wanted the corporate life anyway when that's practically all she's thought about through the entire movie? Sheesh. There is no explanation of what she's going to do next.
Before that, she allows the new boyfriend to walk unhappily out of her seemingly chaotic house when a few words of explanation would have cleared things up, but she just stands there with her mouth open. The next time she sees him, she says , "I guess I should have explained things." That seemed to be added by the writers because of potential viewer outrage over the previous lamebrain scene.
Before that, the new boyfriend is able to instantly scribble in a couple of magical adjustments to her carefully written presentation without even reading it.
It all ends with the Hallmarkian answer to everything-a wedding.
It was actually a moderately cute movie before these ridiculous scenes made it fall apart.