What I can deduce from your post is that most of your friends have fixed Moon signs. Perhaps to complement the Sun/Moon fixed sign combo and the heavy concentration of fixed sign placements?I have 5 cardinal placements and 4 mutable signs myself and most of my friends are mutable moon/cardinal moon placements.
My boyfriend is fixed Scorpio but that is the only fixed placement he has. The rest is mutable and cardinal.
In your case, your boyfriend's Sun/Moon mutable was too irresistible for your ASC angles.Which makes sense because the angles are our "wake up and look" points.
With regards to communicating with air signs is concerned, it could be that it's the "type" of air sign you speak to(not all are the same).
Your Moon square Mercury square Jupiter in fixed suggests that your down-to earth approach of your moon is given a"zinger" by your Mercury and then plunged into deep waters by Jupiter.But it still makes you quite "matter of fact" in the way you speak.
Maybe air signs appear too "scattered" and "fickle" in their communication with you? That's why you don't connect with them?
You also have your own quirky way of expressing yourself.But it is more tainted with a lot of "heaviness" and "seriousness" that is characteristic of fixed signs.