Slept with my ex bf's brother out of spite. Now my ex is suicidal.

Like a month ago, i finally broke up with my ex bf because he cheated on me repeatedly. Found out he did it again. Couldn't take it anymore and was like enough is enough. After i broke up with him, out of spite I slept with his older brother who i knew lowkey always wanted to hookup with me. He found out about it. Got into a fight with his brother then showed up to my house having a full on meltdown. I literally told him i didnt give af. We weren't even together anymore. None of his business, so move tf on. For weeks, he harrassed me with text messages, calling me all sorts of names. I didn't reply to any of them and ignored them. He started showing up to my house wanting to talk but i kept pretending i wasn't home. Even saw his car pull up to my work and told my work buddies to lie that i was off sick. This just pissed me off even more. I ended up texting him to stop stalking me or i'll get a restraining order on him. And to be extra petty i told him the sex with his brother was amazing and that he had a bigger dick than him. He replied back, "you really want me to off myself don't you? Is that what you want?" I replied, "Lol". Not falling for his manipulation and pathetic guilt tripping. Am i supposed to feel sorry for him because i literally don't. Move tf on, Brody. It's OVER. No regrets on my end. Sorry, not sorry.