When you're in a relationship with the person you know you want to spend the rest of your life with, you, of course, hope that they feel the exact same way about you. And while you might think that you're both on the same page, people — and relationships — change and grow as time goes on. That means that although they might have previously thought that the two of you would end up together, things may have changed. There are some red flags your partner thought you were "The One" but is now doubting it that you should watch out for because the last thing you want to do is come to the end of your relationship, heartbroken and wishing you hadn't wasted time earlier, past the point that they started to feel as though you might not actually have the future you always thought you would. Not only that, but being blindsided by a partner and feeling like the life you thought you knew is suddenly crumbling around you really isn't all that much fun either.
Luckily, there are some signs, if you know what to look for, that can give you a head's up that things might not be going as well as you think and that your partner is starting to have doubts that you're really "The One" for them.