So, whaddya think happened next?
Rocky and Angie get married quickly, by a Justice of the Peace. Dominick shows up and gives Rocky another black eye. Angie's mother continues to cry in bed, but the real heroes are Rocky's family and old neighborhood friends, who take them in as their own, and Rocky and Angie are pretty happy in a small apt. Rocky takes the job at his friend's used car lot for a while, and does pretty well, but returns to music at Angie's urging. Rocky scores a series of good gigs, bringing him a few bucks, in between more black eyes from Dominick.
Finally, they have a blessing-of-marriage ceremony given by an avant-garde Catholic Priest, and even Angie's mama comes to terms with the whole mess, but not before joining Dominick in giving Rocky two black eyes.