Fiancé doesn’t want to talk?

Hi I’m a 29 f and my fiancé is 28 m and I’m struggling talking to him about our relationship. Honestly I have felt like I needed to take responsibility for some things that happened between us but for some reason every time I try to talk about it he gets upset and doesn’t allow me to express my truth. He interrupts me and doesn’t try to understand what I’m trying to tell him. He says he doesn’t want to keep talking about our issues but I don’t think we ever have in a constructive way that allows us to grow. It’s so frustrating and it’s been affecting my mental health for a while. Any advice on how I can get him to listen?

Fiancé doesn’t want to talk?
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