<human>: I was out a night with some friends, and an ex (a friend of same friends) who had recently been stalking/harrassing me online was there. I confronted him gently in an attempt to make peace, but there was no having it, he said some things that slowly put me into a rage. 

I gave him a hard lash across his face and walked away. I could hear him shouting behind me but I kept walking, went back to our friends. He came up to me again and started "If you ever fucking slap me ag-" SLAP! Second one, in front of everyone there. It didn't land as good as the first, but it was the most satisfying thing I've felt throughout all of his bullshit.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Ex has been harrassing me, slapped him twice, second time in front of our friends. Felt good.