Every video game romance* I have experienced felt too abrupt. It's two conversations and "Hey, I feel this deep, profound connection between us." It feels more like stepping in to a trap than any kind of relationship. Then it ends as abruptly as it started. "Sex was great. Lets kill the big bad."
*Exceptions being Jaheira and Viconia in BG2 and Tali in ME2, because in both cases romance blossomed in the sequel.