Hey, OP. Sorry I am no wordsmith. So be gentle when you read this post.

It seems like you have stuck with her for a full year accepting all of her flaws and negative habits. You must really love her. If she truly is the most important person in your life then I suggest that you go to her. Do not wait and give yourself excuses because you will regret it.

My reason is if you don't move in with her you will never fully experience what it feels like to be in love with her. You will miss out on picking her up from work. You will never get to experience the weekly date nights. No more shopping for groceries together and picking out what flavor of candy to get. You will never get to see her face when you surprise her with a homemade fancy dinner. You will miss out on the nightly tickle giggle fight under the bed covers. You will never get to explore new things that you two has never done together. This LDR is just the beginning of you two’s journey of love. You haven’t even gotten to the good parts yet. Mehrabian study says that 55% of communication is body language, 38% is the tone of voice, and 7% is the actual words spoken. So right now you are missing out on 55% of your relationship.

Have you ever thought that maybe her insecurities and possessive attitude will change for the better once you two move in together? And to be honest, if it doesn’t work out between you two after the move. You can always start somewhere new or move back. At least you gave it a shot.

The future is unpredictable. If you truly enjoy her company then GO!

Speaking from personal experience with my LDR ex of 4 years. I have a lot of regret and guilt don’t let it haunt you too.