Seriously??? You know what he meant! That maybe you should go!
I doubt you will, but I highly recommend you go get the "Boundaries in Marriage" book by Cloud and Townsend, Christian authors. You can even get an audio version if you don't want to read it!
In short, if you establish boundaries, a person's initial reaction may be to pull away or get hostile, because you just changed the rules on them and they are thrown off...
If they value your relationship, it doesn't take too long for them to get on board.
If they continue to be hostile and pull away, then you figured out they don't value your relationship. Not just spouses, but friends, family members, etc etc...
The regular "Boundaries" book is great, too, more general. In the end it says that healthy boundaries help you realize which people in your life are there for the right reasons and which people are not good for you...