Is my boyfriends behavior disgusting or understandable?

Long term relationship. He went to his high school reunion and said he wouldn't drink too much because he didn't want to, plus he and I had plans the next day.

When I called him next day he cancelled out plans because he got quite drunk at his reunion and was dancing all night.

He's 48 years old. Has an 18 yr old and a 17 yr old daughter.

A few of my friends said it was disgusting. Like he's 48 and couldn't control himself st a reunion and had plans with you.

Other friends said we'll its was his reunion give him a break.

What do you think?

Is my boyfriends behavior disgusting or understandable?
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