Glad to hear you got the lipase thing sorted out - I'm interested to hear whether your DD is more willing to use a bottle to drink your milk that hasn't been frozen.
I can totally feel your pain, BTW. My DD would only use the nipple type that had been introduced to her in the NICU - of course it was a type that you can only buy in 144-count boxes, so I spent the first few months of her life in mortal fear of losing one of the 2 nipples that I had! (The same thing happened with her beloved NICU pacifier!) I could have gone back to the NICU to ask for more, but I never wanted to step foot in that place again!!! We tried many other bottle/nipple types and none were accepted, so I just held onto those 2 I had from the hospital for dear life! Luckily, I stayed home with her and we rarely needed to use a bottle, so it was just never an issue.
Funnily, when she weaned unexpectedly at 18 months we went through a transitional period of giving her milk from a bottle, and she LOVED the bottle! She was totally fine with those previously rejected nipples, but at that point the little 5 oz bottles just weren't cutting it. I got a couple of 8 oz sized avent bottles with stage 2 (3 months size) nipples, and she was happy as a can be with those. She still uses them to drink water during nap time.
I'm expecting #2 now and have been thinking about the bottle issue again. I've excited to see this new Lansinoh bottle - that's a new one to me. I'm tempted to get one for the new baby. I was also considering the new style Avent bottle.