Be sure i would have done the same comment about a muslim accused of being pro christian, sorry if its hurt you but there is no hate in this: i was jus meaning that after being cheat by Richard you can even by revenge go to muslim side.
Armenians helped greatly crusaders since the 1st crusade, but the mod is in 1187. King Levon is not yet a king ! I'm ok there was greek people in Cilicia but they were probably more mixed than the greeks people from center of empire (that to them who i think when i speak of "greeks"). There was anti Armenians feelings in the roman empire. Cyprus was pillaged by some franks yes and it was the famous Reynald of Chatillon (when he was spouse of pincess of Antioch) the same guy that attacked a Saladin's caravan years later and done the pretext to him to invade holy land ! This guy is really brutal ! You mostly right on mcuh of what you say but all this in more in years 1195's.
Cilica was quasi independant but still a vassal of an usurpator emperor, we can see that as defensive pact yes (a defensive pact is an alliance too). I think you refer to these events
https://en.wikipedia.org/wiki/Leo_I,_King_of_Armenia Leon bacome prince of Armenia and counter a turk invasion with help of Antioch. They also say he is a vasaal of Antioch (like i said before) and Antioch a vassal of Isaaac Doukas Commène.
I was speaking of the western part of byzantine empire, not the western roman empire

I know they were calling themselves roman or Romanian, but they were greeks.
I also found a correct map of Cilicia principality (for Cilicia/Antioch frontier), i think in the mod Alexandretta (Alexandria here) is under Antioch. The map is 1137 but there was no war between Cilicia and Antioch in 1137-1187 so i think the border remain the same.