There are many tell-tale signs that point out that you feel secure in your relationship and are comfortable with your partner.
You talk about LITERALLY everything.
No conversation point is off limits. There is nothing you won't talk about with that person—weird, but also kind of refreshing. You can talk about your day at work, the annoying kid in your class, tell your S.O. they have spinach in their teeth...
You don't have to text them all the time to know what's going on.
While checking in throughout the day is cute, if you go for an hour or two without hearing from them, it's not the end of the world. You know he's probably playing basketball at the rec or she's probably at chapter meeting and can't respond.
You aren't afraid to voice your opinion.
In the early days of dating, you may have said her shirt looks great when in fact you hate the color, or you may have told him you don't care if you get Chinese food even though you ate it last night for dinner. When you're truly comfortable, let it fly! Tell them how you really feel (to an extent)!
That person is always the first person you go to with everything.
Whatever the circumstance is — just got a job, failed an exam, lost your wallet, etc. — you always text that person first, even if there's absolutely nothing they can do about it. It just feels right, like something you should do.
You aren't as insecure.
So what if you didn't have time to shower before they came over? No biggie. If you brought the wrong shirt to their house? No worries! You forgot PJs and are staying over? You can borrow their shirt! These things don't become a big deal anymore.
You're not completely and totally head over heels all the time anymore.
Of course you still love each other, but it's OK to get on each other's nerves every once in a while! Maybe you had a bad day and they aren't listening. Maybe you wanted to hang out and they forgot and made plans. It's OK! Just use these experiences as an excuse to tell the other person how you feel and DON'T BE PETTY. At least for very long.
You sign each other up for things.
Maybe your BF has to be your plus one to your date party or you have to be his plus one to formal. Either way, you sign each other up and tell each other about it later. It's not like they'd have weekend plans that weren't with you anyway, right?
You sleep like a baby together.
You've gotten used to his snoring and tossing and turning, and he's gotten used to you taking up the whole bed and sleeping in the middle. It happens, right? You figured it out.
You both need your space.
Sometimes you need a night or a weekend away from each other, and that's OK! It just means they'll have time to miss you and they'll realize they wanna spend more time with you.
What else have I forgotten? I'm sure there are other signs you and your S.O. are getting comfy with each other. Comment below!