Norma's character was horribly written in 4x09
I always thought her death would be horrible to watch, but unfortunately I still find it so anti-climactic. There were some great moments but overall it felt really rushed because it wasn't true to her character.
Her character made a lot of progress in the past two seasons. She was NOT in denial about Norman. She was looking for a psych ward in S3. Norman pointed a gun at her and made her scared for her life in S4. She's the one who called Romero in 4x02, telling him Norman must be locked up. SHE put him in Pineview. She wasn't happy that he wanted to be released and she was happy without his presence in the house. She was reasonable at this point. 4x08 just proved that his return was awkward and things had changed. It makes no sense she'd refuse to believe he was dangerous and fight with everyone over that fact. She's the one who got him committed in the first place.
Take the scene between Norma and Dylan, the writing is OTT forced. "You're just inventing all of this, you're making *beep* up because you're jealous of him, you always have been!" - COME ON. Even Vera could barely sell such a forced line. Also, when he walked out, she didn't even try to apologize or make him stay, she just asked for the earring. Again, her character made progress with Dylan and they even had a mature discussion about Norman needing help at the end of S3, why would she be such an idiot NOW after he pointed a gun at her?
I also didn't buy that she would tell Norman that Romero and Dylan were against him. It was so immature.
The last scene with Norman was also pretty disappointing. The way they were laughing and he was singing to her... Or when she asked Norman if he was serious about the plan to move and said that they're "meant to be together in the end"... just seemed dumb to me. It just took away from the tragedy of the story because it made no sense. Her character was better than that and deserved a better exit. It would've been much more tragic if she hadn't been so blind. That's what I thought they were going for, but instead for the first time on the show I found her unlikable and stupid.
Also, why was Romero suddenly there in the middle of the night, knocking on their front door and repeatedly calling out Norma's name instead of just going to her room? It was obviously late, can't you just check her room instead of going around the house and calling her name? This one isn't that big of an issue, but still I found myself suspending disbelief this entire episode. The rest of the season was 10/10 so it sucks they messed up the most important part.
At least Nestor did a great job with the final scene and Vera can act the hell out of being dead. That scene made her death a lot more tragic, but still wish the buildup was better.