Getting over feeling bad about breaking up with someone.

Vi
Hello ladies. I recently broke things off with my bf of one year who was highly manipulative, dishonest, and had some deep rooted emotional issues (such as thoughts of suicide and bad anxiety). I feel bad for breaking up with him, but I know I needed to get out. It's been 2 weeks and I just keep feeling really bad about ending it, because I know he already struggles with depression. I know I'm not responsible for his feelings or for his actions, but I can't help feeling guilty and bad about it. Anyone ever go through something similar and have any advice they'd like to share??