Something is wrong with my pear tree
Thank you for your question. Your tree appears to have the fungal infection described here: https://pnwhandbooks.org/plantdisease/host-disease/peach-prunus-persica-leaf-curl
Unfortunately, for the homeowner west of the Cascades with a variety of peach tree that is not resistant to this disease, your options are limited. The only chemical treatments available to you are those marked "H" ("O" means organic), and it is too late in the year for some treatments, and too late for others. Since this area is particularly susceptible to this and other fungi, you might want to consider removing this tree and replacing it with one of the resistant varieties mentioned in the article. Hope this is helpful. Good luck!
Another expert says that your plant has this: https://blogs.oregonstate.edu/mgmetro/2018/07/01/blister-mites-grapes-pears-walnuts/
Regardless of the cause, control is similar: https://pnwhandbooks.org/insect/tree-fruit/pear/pear-eriophyid-mite