Let me have you do a little exercise....... Flash forward twenty years from now. Do you see yourself still putting up with this treatment? If the answer is no then you know you need to take a stand. Whether that means approaching him and talking to him about it or leaving the relationship for good. Its up to you what you choose. Only YOU know how much you are willing to take. Good luck.
Long time boyfriend takes the liberty to continually nit-pick me and causes bickering between us. Very frustrating and nerve racking. How do I tell him I don't like his actions and if it continues I will not see him any more. I fear telling him?
If you fear talking to him about anything, this is not a healthy relationship. You shouldn't have to tell a person who supposedly loves you to stop continually criticizing you. If he feels entitled to do that, you need to get away from him.
If you cannot talk to your partner without feeling afraid, then leave now. There is a life out there waiting for you and a man that you won't feel afraid of, don't waste anymore of your time it's very precious.
Start with the basics.
Tell him he needs to stop the nit-picking he's doing because it is hurtful to you. That actually may work
But of course, it's also unacceptable in a relationship; and if he doesn't stop, there will no longer be a relationship---You just don't have to hit him with full force yet.
But be ready to use the full force if that doesn't work.