9. You’ve suddenly become Donna Reed.
Male or female, you start bringing cookies and brownies to share with the office or class, and you glance to see that the object of your obsession has noticed. And, you keep your apartment neat and tidy in case they might come over — these are definitely signs you’re falling.
10. You can’t concentrate on work.
Maybe even as you read this article, you’ll glance and realize that half an hour has gone by. That’s because you’re daydreaming. And you are in looo-oooove.