Hello! So I would correct it as follows:
(... )with my husband, who has been committing domestic violence against his wife and is abandoning me. Maybe she deserves a better man, who has a nice personality and good morals, instead of my husband with his potentially violent tendencies. ( ...) and then preventing the same tragedy I'm suffering from my husband from befalling Jessie Lin?
For this last sentence, you could also say:
and (then) preventing Jessie Lin from going through the same tragedy that I am suffering from my husband?