Ashamed of telling friends

It's been 2 months since DDay and I haven't talked to anyone about it. I've been processing all my feelings only with myself, and my partner occasionally when it's something we need to discuss. Other than that, I've been dealing with everything by myself.

I'm embarrassed to tell my friends my partner cheated on me, not because I've been cheated on but because I stayed. I feel embarrassed of being judged (as being cheated on is almost always seen as a break-up/divorce reason).

I'm also hesitant on telling my friends as some of them we share (even though they are mine, we all know and occasionally hang out together). I don't want my friends to see my partner in a different light, even though they are allowed to, because if it's someone I'm going to stay with then I don't want my friends to have negative feelings towards our relationship. If my best friend were to tell me her long-time boyfriend cheated on her I would hate his guts, tbh. Also I don't want to have to explain the reasons why I chose to stay and to work on it.

Bottom line, I'm ashamed of being judged and scared of group dynamics changing.

I want to know how you felt telling your people and how they felt, especially when you share relationships with your partner.