Hello insecureobsessed, welcome to PC!

I hope you find your time here to be of benefit. Once you have 5 approved posts you will be able to enter the chat room and talk to fellow members. There is almost always someone online to chat with.
I think it's great that you are seeking help for your issues, because over time insecurity and reassurance-seeking can definitely affect the other partner and push them further away. I cannot personally relate, but I imagine there are some members here who can provide some input. I wish you all the best.