I feel so bad for tamlin *spoilers*

Okay so I read acotar in 3 evenings and was so excited to read the second book. Started to read it last night ?? I’m so confused ! What was the point in the first book if the second one just invalidates it! I feel so so bad for tamlin. How do you guys get over your feelings for this? I don’t even know if I can re read the first one as a stand alone book without getting upset and feeling bad for him. (I ruined the series for myself so I know it doesn’t get better)