I have the same frustrations. It used to work great but lately it randomly capitalizes words and fails miserably at recognizing what I’m swyping.
Also, it has something against the word “Tuesday” “today” (see it did it again) and always defaults to “Tuesday.”
I don’t watch a lot of romcoms but one that I’ve seen and like is “While You Were Sleeping.” It starts out like how you describe but then there’s a little twist to it and she ends up with the bluecollar guy.