Fiancé has been lying and withholding who he’s been golfing and grabbing drinks with?

I know of at least 4x within the last 6 weeks that he went golfing or out to drinks and told me it was a guy or two when in reality it was them and 2 female coworkers and sometimes it was just him and the girl or girls. One of the times was my birthday dinner and the reservation was at 4:45pm. He told me he was going golfing with a guy coworker. I ended up having to run home to take his dog to the vet because he was reacting poorly to a recent surgery around 10:30am. Around 1pm he texted and asked if I minded if he grabbed lunch as he hadn’t eaten all day. I told him it was fine but the dinner. He showed up at 4pm noticeably tipsy. I found out that day he had gone golfing with one of the guy and 2 girl coworkers, and then continued to hang out with them drinking after while I was home carrying for his dog and getting ready for dinner. One of the other times he started around 3pm happy hour and I had met with a girlfriend to catch up that night and I was just up the street from our house, he got home around 8:40pm and started getting really upset I wasn’t home yet and what was I doing (mind you I met my friend around 6pm and had dinner). Come to find out he spent the day with the girls drinking. It’s the lying about who is with him, why lie, especially if I shouldn’t be concerned? He is always so skeptical of any male coworker of mine? He got upset with my team of 4 (all guys but me) did a golf team outing. Yet he’s secretly golfing and getting drunk with female coworkers? Is this a normal reaction?
This is not ok!
It’s not that big of a deal.
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Fiancé has been lying and withholding who he’s been golfing and grabbing drinks with?
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