Going on a trip with his friends after our argument?

Is it okay to go out on a trip with friends after having an argument instead of sorting out our argument?

The argument was a misunderstanding between the two of us but eventually lead us both tense and sad. We didn't talk for like 2 weeks. and then, all I know is that he went on a trip with his friends.

Am I being too sensitive and possisve to be angry that he's going out with his friends instead of making up our argument? Or he just needed space?

Going on a trip with his friends after our argument?
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