So sorry to hear of the rejection, Jjacobs.
Ammi-Joan is lovely. She read my last two manuscripts, requesting from me after she read the first ten pages of my previous ms on my blog.
She rejected it, and then, like you, invited me to send my next project, which I did. That was rejected because she already had a client with a ms with similar elements, but my point is, building a bridge with agents across projects is so much more than a rejection -- it's a step closer to rep, and validation of ones writing ability by a professional in the biz -- no small feat.
I've read stories of other writers sending projects to agents and eventually, due to the project being a story that resonates, or due to the writer's craft improving with each ms, the writer is eventually signed.
When I rec'd my offers in October, one offer came from this very scenario -- an agent who'd read and rejected my previous ms, who asked me to send the next project, which she offered on.
So, although the rejections sting, it does look like you're on your way! : )
Em
Queried w/ first ten pages: 10/6
50-page partial requested: 10/21
Rejection: 11/19
The rejection was personalized and complimentary, which in some ways made it harder to stomach, but she offered to read my future work. My interactions with Ammi-Joan were encouraging, and I'd recommend her to others. Best of luck to those who still have work with her!