He's not ready for whatever you have and a relationship is about how two people live their lives together and whatever that looks like for them.
What it looks like for him - at least right now - is different to whatever situation has been happening.
If it doesn't change he will continue to be in this state, for at least a couple of years, if I know people.
Now if it's a change into something you're immediately comfortable with - great - you guys want to change along the same lines into what suits you both better.
But if it's a change you don't want to make - you're both not in the same place.
No one who doesn't know you intimately can tell you if those are changes that will be good or bad, or worth sticking through - that's up to you - but he has been really very clear about what he wants and needs here, and it's up to you to decide if it's worth it or not.
There's a world where you stick through it and it comes up roses, there's a world where you find someone who is exactly in the right place for you and it works out better. the opposite of both worlds is also possible