Am I overreacting?

On NYE hubby and I went to celebrate at one of my childhood friend's. When we were ready to leave we could not find a cab (cuz NYE) so a guest, that we met that same night, kindly offered to call a Uber for us. We were then supposed to wire him the money to cover the fare. The car arrived, and we were rushing out when the guest reminded me that we did not exchange emails for the wire. We exchange numbers with the intention to then exchange emails...we were all pretty tipsy/drunk so bear with me lol. Hubby lost it in the car, he was fuming with rage because I gave out my number to another man. We ended up having a huge fight that night.

Flash forward to last week-end. I came back home on Friday evening and he was on the phone with a colleague of his (woman) who just got fired and needed to vent. He was on speakerphone so I heard most of the convo. On Saturday night, she called again, on his cellphone this time, asking for advice. I did not think anything of it at the time. He is a good listener and gives good advice. Yesterday though it stroke me...how is it OK for him to give out his number and our home number to women behind my back, when I gave up mine, in front of him and at least 10 ppl, for a monetary transaction and to him it was clearly disrecpectful? I asked him that exact question and his answer was "I don't know" which got me upset. I told him that I needed a better answer, he ended up frustrated and went to sleep on the sofa. So am I overreacting or am I right to find his behavior wrong and unfair?