Strange to see, we are almost at the end of the story, and I think I
have never mentioned about Alex's Delta and Gamma since they don't make part of Mingan's future alpha the romantic life, unlike Phillip who shares the room with him, and has to hear his sister's complaints about the future Alpha because she is worried about her best friend.
P.S.: In case you have doubts, Amy and Anna are a GxG couple. (Noticed that both names begin with A writing this note...)