I'm sorry you're going thru a tough time. Go ahead and put your project aside. You may feel like picking it up again someday.
About 10 years ago, I was working on a very detailed counted cross stitch picture of an old world Santa. My sister died a couple of days before Christmas and I totally lost interest in my project. Every time I looked at it, it reminded me of her. I did eventually finish it, but it was 3-4 years later.
If you still have the urge to quilt, make something special for yourself.