Sure, tbr... your W could be cake eating. But it will be YOU and your clear boundaries that will determine whether you are a doormat. You are a doormat if you are doing things for your W out of fear rather than love.
Still, your W moving back in is a positive. And, with her being closer, she is more likely to notice your positive changes. Just be persistent with them. Don't EVER relax your goal to create a better R with your W, even if you manage to save your M. And always strive to become a better person. It helps with our Ms and it helps us in life, in general.
Lots of little steps in a positive direction will lead to positive results...
You are doing some great stuff and well done with the visit with MIL et al. Sometimes, things aren't quite the way our WAS try to present to us (and others). Also, nice on the tithing. Give, even when it is difficult. As hard as it can be some times, doing 10-10-80 (10% give, 10% save, 80% use) can become very rewarding.
Absolutely be proud of how you handled yourself again with the ILs and your W. These are huge positives and your W is noticing. Never doubt that.