Why do I feel the need to tell my partner everything? Like all of my beliefs and all of my past and all of my thoughts? Is this my OCD talking or is this just normal behavior?

Does anyone feel the urge to confess secrets even though they’re not yours to share? My husband told me about a traumatic event he had and trusts me to keep the secret. It has NOTHING to do with me at all. And my brain is making me feel like I need or want to tell someone. I want to be trustworthy and my brain is making me feel like I’m not because of this obsession. It’s so confusing because I know I don’t need to but I feel like I “want to” because of the OCD anxiety? And the feeling of wanting to makes me feel more anxious and like a terrible person. I have confessed literally everything to my mom about my thoughts so she’s my safe person. And I had an emotionally abusive dad (probably how I got OCD at a young age - like 8 years old) that has now passed away. So confiding in her even with intrusive thoughts and messed up shit was safe for me. Does my brain feel like I need to tell her just because she’s my safe person? I hate the feeling of me “wanting” to tell at all too and can’t tell if it’s real and it’s making me feel like a horrible person. I literally have no secrets myself. His mom knows and so do I. So I’m not the only one that knows. But why is my brain doing this? It’s spiraling me out and has been for a few days. But I want to keep the secret because it’s HIS and it doesn’t affect me in any way. I mean sure I feel bad for him - but it’s from his past before we even met? Someone please help me rationalize why I feel these things and why it’s so confusing to know if you actually “want” to do something or if it’s OCD? It’s causing a deep anxiety pit in my stomach and has been for days now.

It use to be so much worse but I notice I over share so bad, some examples are like whenever I’m in the store and I buy some random things and I’m checking out I always try to sneak in a reason for the stuff I’m buying so the cashier doesn’t think I’m weird even tho it’s probably regular stuff. Or if I think I said something wrong to someone I try to find a way to add in something to say to ensure they heard me correct. Most times this has worked other times it’s just me overthinking it. It’s so silly but annoying sometimes. I always over share things in case someone thinks I’m weird or something. Sometimes I even do it on here, if I think my post is confusing or someone could take it out of context, I’ll say something in the comments in case someone thinks I’m strange. It’s hard to kinda just let people think whatever, but my ocd seems to obsess a lot over what others are thinking. It sucks. I always have to know what they’re thinking and if I can’t I’ll try to get them to not think that way but I can’t help what anyone’s thinking about me.

I keep remembering ways I have behaved based on my intrusive thoughts. Like I always had patterns of attention seeking even though I don’t want those people and love my fiancé more than anything in this world. And every single thing I remember, I feel like I have to explain it to him or else it means I am a liar and don’t deserve to move on from the feelings of shame and anxiety. He doesn’t want me to tell him about it all but I feel like I have to 😞