Who's fault is it really?

"...Bertha Mason is mad; and she came of a mad family; idiots and maniacs through three generations? Her mother, the Creole, was both a madwoman and a drunkard!--as I found out after I had wed the daughter: for they were silent on family secrets before. Bertha, like a dutiful child, copied her parent in both points. I had a charming partner--pure, wise, modest: you can fancy I was a happy man. I went through rich scenes! Oh! my experience has been heavenly, if you only knew it!..." (296)

What's been on my mind is that, ok, I get that Bertha came from an insane family, but maybe Mr. Rochester had a little to do with her insanity too. Maybe she would have outgrown it if Mr. Rochester had given her the opportunity to. I think that him locking her up made her go even more insane. The locking up may have stressed her out and made her emotionally depressed and that may have triggered her insanity. Just like an online article says by a person with the name of KnowledgePower says that many causes of insanity are stress, anxiety, trauma, and emotions. I think he is responsible for her insanity, and it's stupid that he thinks that it's ok for him to re-marry because she is the way she is. When you marry someone, you make an oath: for sickness and in health till death do you apart, he isn't really following through with that. He loved Bertha before he found out she was mad, is it so wrong to love her afterwards. He needs to put up with it, and try to make it work; not lie to people. He's a liar. A BIG FAT LIAR! And for what Jane's been through, she doesn't need anyone that's just going to play with her heart. She made the right decision in leaving.