Mistake or not

OK I am back I'm the single life after breaking up with my best friend over the past 2 days I started to feel neglected... the day before yesterday he had a friend st work that's a girl he told me he was having a bad day on one break than on his lunch he was gushing about her and his bosses making his day better.... I told him that night that I was feeling like I am losing him.... he told me to come down and that he loved me. Than yesterday he texted me on one break that was it and didn't hear from him until late Last night in the heat of the moment I was mad and hurt broke everything off... and now I am having second thoughts.... did I over react or was I on the money