How should I handle it that my girlfriend gave her number to a guy?

Anonymous

Hey, my girlfriend and I are together for a year. Currently, she is doing a semester abroad. She tells me everything and I tell her everything. Yesterday she was in a bar with friends and new people were also around. She got on very well with guy who she met the first time there. They talked a lot, they danced as a group and in the End he asked my girlfriend for her number and she gave it to him. I was not happy with that because she coule say no or at least say I have a boyfriend. I talked to her about it and she said that it is only the number and she could't bring it up that she has a boyfriend because it would be awkward if she randomly said it. She said if he would ask her to hang around she would say that they should do it as a group and if he would like to do it only with her she would say sry I have a boyfriend. \don't know whether I am making something big out of it. I am still uncomfortable with that. I am interested in your opinions. Thank you.

Updates
5 mo
Yeah maybe I am making too much out of it…
How should I handle it that my girlfriend gave her number to a guy?
7 Opinion