You want her to be committed to you, but after 16 years neither of you wanted to commit to more than dating?
You need time to heal from this and possibly the prior R. Take that time for yourself. Don't lie down like a whipped dog and take her crap.
The best thing you can do to get her back is to go no contact for 20 or 30 days, maybe longer. If she changes her mind you'll know bc she'll be trying hard to get you back.
H 34 W 29 BD 3/12/18 Divorce Busted Spring 19
It is not things that bother us, but the stories we tell ourselves about things.