So, this past weekend I had a threesome with my gf and her best friend (a girl) that I initiated. After we left my gf was a little distraught about what went on and says "Okay, we need to talk about what just happened." Then I say "I don't know what you want me to say. There really isn't anything TO say." I just like blew her off. She stayed quiet for awhile on our way back to my place. This part is a little fuzzy but basically at this point we got back to my place and she was crying because she was scared she was going to loose me, that I wanted to fuck other girls etc. I didn't say much and listened to her. Throughout the next day she would randomly start thinking about it, get sad then cry. I comforted her by holding her still not saying much.

Now it started to get later so we went to a party. I was hanging out having a good time but I could see that my gf started to feel shitty about what happened the night before. A few hours into the party she says "hey, make some time for me so we can talk." I say "alright." I'd say about 30min pass and say to her "c'mon, lets go outside." I excuse myself and mention to my friends we would be back. We walk outside and go to the car but decide to take a walk (I had some nervous energy I wanted to get out.) She says the same things as before and I listen. I stop walking then pull her closer to me and tell her some nice things about how she's my favorite, i'm not going to leave you which I rarely say.

Should I have done/said something else? What would you have done/said in that situation. I think I went a little beta at the end but i've learned you should learn to sort balance alpha traits and beta traits, with it leaning way towards alpha.