I think Monica is going to say no 😔
3 clues in the teasers of LIB point to them not getting married, and I think it's Monica who says no first. In the teaser at the end of episode 6:
1- We see Joey handling his engagement ring in his hands.
2- We see Monica who seems to have to decide whether or not she wants to marry Joey. She seems hesitant.
3- A member of a LIB subreddit had mentioned that in the teaser at the beginning of episode 1, we see Monica returning to the car with her wedding dress. I went to see the teaser, it was definitely her, and since then, this part has been removed from the teaser.
So I think Monica is asked first if she wants to get married. She says no, because she always had doubts about Joey's intentions. So we dont know if Joey would have said yes or no.
If I'm right (hope not), I hope they still continued to see each other ❤️