You really don't get it, do you OP?
DH & I lost our DD1 to still birth at 32 weeks, 18 months ago. She was our PFB, conceived after various fertility issues. DH & I are deeply private people - we shared no details of what happened or why we lost DD, even though we had a post mortem and know, all that anyone knows is that we lost our DD to still birth. I certainly don't share my grief, and if someone was to read my FB posts, they'd think I was happy, blah, blah, blah and "had moved on". Since then, DH & I have been trying to conceive and I've had 3 early MC's and a MMC at 12 weeks where we found out at the 12 week scan our baby had died. No-one knows, because I choose not to share.
One of my closest friends fell pregnant about 3 months after we lost our DD. She was kind enough to tell me first, that she was pg, before she shared the news with anyone else so that it would give me time to absorb her news.
She then didn't shove her pregnancy down my throat and she certainly didn't ask me to her baby shower or share every little bit of baby news - she left it to me to ask and apart from asking how she was when I saw her, that was as far as it ever went. I was over the moon for her, but as she started to show, her pg got harder and harder for me to deal with.
It was made worse when her son was born on the day of what should have been our daughters first birthday. Every time I see her son, which is usually twice weekly, because we have a business together, it's like a stab in the guts that she has a beautiful, vibrant baby boy and all DH & I have is some ashes. I've never wanted to hold her son, I'm not that interested in her son, apart from how he is doing, but the questioning is only ever "polite interest". I haven't given any baby gifts, and I certainly don't gush over him like everyone else does. I CAN'T. Because every time I think about it, I choke up and think that actually, my daughter should have been 12 months older, having experienced all the milestones her son is now having.
Do you know what. She is fabulous about it. She actually understands how bloody hard it is for me to see her with her gorgeous son, so she doesn't make a big deal of him. She certainly isn't angry that I'm not being "doting enough".
It's not about you, OP. And, TBH, if my friend was you and she rang me up to "confront me", I'd be giving her a few home truths about just what a self centered cow she was being. You have absolutely NO IDEA. To think that she possibly might still be hurting after 12 months just shows. You don't just get over it. You learn to live with the grief of loosing your child.
Frankly, she's well shot of you.