Should I not have spoken to my ex?

My boyfriend dumped me over a misunderstanding few mornings ago. He thought that I was lying about where I was because something wasn't adding up right. I tried calling him back after dumping me but he wouldn't answer. About a few hours later, an ex I haven't been with in a year calls me. I haven't spoken to my ex since I got together with this guy until this moment. We stayed on the phone for only an hour and we didn't really speak about anything. Later that night, my boyfriend calls and pretended like nothing happened. I brought up him dumping me but he said it was just kidding and he overreacted. I let him know that I had spoken to my ex earlier that day and he was pretty furious about it. Still is.

Should I not have spoken to my ex?
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