How to get your spouse to open up and talk about your relationship?

I want to talk about things that we struggled with in past to improve our relationship but don't want to push her away and make things worst

Updates
8 mo
Thanks for everyone's input was finally able to get through to my wife it was a very peaceful and productive talk for hours about all of our issues it was great been needing that for prob 3 years hopefully got to the root of our problems and hope to not avoid any in future still a lot of work to do but looks promising thanks to everyone who put in helpful comments
How to get your spouse to open up and talk about your relationship?
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