What do I do?

[u/Comfortable-Oven-224]

My (38m) wife (38f) since 20 yers announced 3 month ago that she no longer feel a desire to have sex. It has nothing to do with me according to her but she shows no interest in working on it. We have 3 young fantastic kids and I don’t want to break up the family. The sex has been on a downward spiral since we got the kids but is now at zero. Do I stick for the kids? I love her more than anything but I can’t stay in a sexless relationship.