What's wrong with me?

I'm about 100 pages into the second book and I'm having a hard time with this sense of mourning over loss of Altan. I realize he was abusive towards Rin and a lot of people hate him, but I enjoyed how deeply flawed he was and wanted to see his character continue to evolve. I guess it's a good job on the author to make me feel so invested in this character to cause me to still be reeling over a fictional being several days later (had to take a few days' break in between to digest the end of the first book). Or maybe my psyche is just fucked and I form attachments to toxic qualities way too easily. How do I continue on with this series when I'm so stuck on this character?! I heard it gets worse!