...Wow, you sound butthurt. Face it: you apped in second. They were there for a long time, long enough to express interest in another character. It's a risk you have to be willing to take. The players in a game don't have to instantly drop any and all romantic CR just because you bring in the canon love interest. It is easily spun as them growing apart and moving on because your character wasn't there.

You are not entitled to a ship, and it sounds like you went in EXPECTING this ship.