Only gods could make themselves an ally (or Horatio, which I am not).

However, in all seriousness, I was playing a game of endless space when my ally suddenly became ultra salty that i had warships in his space.... And kicked me out of an alliance. I later offered for simple peace, trade agreement, and science agreement, when i noticed amusingly it said i was in their alliance still. What in tarnation?

http://steamcommunity.com/profiles/76561198022453448/screenshot/842585341026129302

I haven't managed to be in an alliance by myself, but I have been in two separate alliances at once. Fun times :)