I don't agree with pp that friendships matter more than men. The RIGHT man will share your life, finances, body, children, home and be wiping your arse in old age when you can't do it yourself. No friendship will offer that.
Having said that, it can be frustrating to see friends make mistakes when dating and not be able to do anything. But while I have no idea if your man is a good one or not, I do know that a good friend is always supportive of your decisions even when they disagree (unless it's abusive or criminal) and can offer advice but understands you are under no obligation to take it. Unless you have put her through years of terrible, abusive relationships, it seems a bit much to get so annoyed after just a few months. She is entitled to her opinion, but no one really knows what happens between a couple so you can't force your views on someone.
For now, I would focus on your relationship to ensure he is a good man. There is no need to disclose every detail of your romance to your friends. In fact, don't, because even if you forgive him, they will only remember the bad stuff. In time, when she sees you carry on being happy, she will come around. And if she is a good friend, will still support you if it all goes tits up. She may find it too emotionally exhausting atm to deal with you, that's ok. Take space and if it's true friendship, you'll both reconnect again.
I had this with my friend of a decade. My current bf and I had some teething problems at the start. And broke up. I was very sad for a few weeks but we got back together and it's been over a year now that we've been happy with plans to move in together. My friend was there for me during that early split and very against us getting back, convinced he was a dick, stopped talking to me. However I had other friends who were supportive, understanding that sometimes you need to figure things out yourself. She and I took 6 months to reconcile, but I've realised it was because she had a tainted view of men she tarnished my bf with and a lot of her anger was projection of her own trust issues. So now I don't discuss my relationship with her at all and our friendship isn't quite the same. But we are friends. I'm very glad I took a punt on my bf because he's the best man I know. Yours may or may not work out, but at least you will never wonder 'what if' as far as he's concerned.