Did I went overboard by once putting laxative on my cheating bf (now ex)?

Anonymous
Shortly after finding out he cheated and obviously sending him to hell no matter how many times he begged for 2nd chance, my best female friend came with this idea (I was angry and devastated so I was like ''sure why not, he deserves it''):

Keep hearing him beg and pretending to give him a 2nd chance, spend time with him for a few days but then dump him. Before dumping him, make sure to put a regular amount of laxative on his food; but just enough to make him go to have bathroom and sick in bed.

It worked and well I dumped him and told him I just need to think about it and that hope he gets better (totally unaware it was me). According to his mother, he had diarrhea for that whole time but felt ok about 11 am the next day.

At first I didn't think too much and actually was smiling when I walked out the door. Though it''s been many months later since doing this, now I kind of feel some guilt. I have never done this to anyone. Did I overdo it or did he deserve it for being a cheater?
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+1 y
I was pissed off and to be honest, at that moment I was feeling any remorse and didn't care that he wasn't feeling good. That's he only crazy thing I did. But now I'm back to normal and actually have some guilt.
Did I went overboard by once putting laxative on my cheating bf (now ex)?
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