The relationship between omega and alpha can be simple
While Duke Adowa and Major Lutalo had "prosperous" cooperation, in the mansion where Mu Liang was staying, the young omega Wu Jian was guiding Doctor Chewe out of the mansion, the two walked in a little tense silence. At least it was tense for Wu Jian because Chewe was a very attractive Alpha and the worst was that Chewe looked at his face a lot.
Wu Jian as has been said before had nothing very special apart from his sociability and his exceptional face, of course, he had a beautiful figure as a receptive omega.
Normally, Wu Jian dealt with Alphas and Alphas Extremes very well, most were human and some were rare elves, there were other species too, but these didn't get too close to Mu Liang, which consequently made Wu Jian approach other species.
Wu Jian when he was with Mu Liang didn't feel tense for any Alpha or Extreme Alpha, as the mastery of a Recessive Omega was quite heavy and could suppress Alphas and other omegas if they wanted to.