1. You've met most of his friends and family
No one introduces someone to their family unless they believe that it will go the distance. I mean, think about it - it's tough to convince your parents that anyone is good enough for you, so you're only going to introduce them to the best of the best, right?
2. You've been his date to an important engagement
Whether this is to a wedding or a work-do, it's a sure-fire indicator that he's ready to take the fling to the next level.
3. You've celebrated a milestone
Regardless of whether you've found reason to commemorate the day you first met, or your first three months of dating - this gesture just screams that commitment is around the corner.
4. You've made plans for the future
This is pretty self-explanatory, isn't it? If you're already planning your summer vacation in February, it means that he believes that you'll still be together then.
5. They've posted pictures of you on social media
Nothing says "we're together" like making it 'gram official. And in this era of social media that we live in, it makes it clear to other girls that they need to back off.
6. There are no more games
Once you stop playing games, it's clear that your relationship has evolved to a whole new level. You have a level of trust in your beau that you don't have when you're just "seeing each other".
7. You keep some of your belongings around theirs
Not only does this demonstrate that you're spending a considerable amount of time at their home, but it also indicates that you're comfortable enough with each other to do all of the boring, ordinary stuff too.
8. Your friends become his and vice versa
Making it into their inner crew is certainly cause for celebration as they're making an active effort to make you part of their life.
9. You've both deleted Tinder
And every other dating app, that prior to meeting each other, you were sure to develop an RSI because of.
10. You've argued
Now, hear me out on this one - if you've had a fight and managed to get over it, it's a great indicator that you're not ready to call it quits on each other just yet. And, moreover, it shows that you think that your "thing" is special enough to withstand whatever misunderstanding you've had.