The baseball player who punched and beat his girlfriend multiple times in a stadium stairwell PROPOSED to her after his arrest ... and she said, "Yes."
TMZ Sports has learned ... Danry Vasquez and his girlfriend are describing themselves as a "happy couple" ... roughly a year-and-a-half after he was arrested for the violent incident.
Multiple sources tell us ... Danry's GF begged prosecutors not to push forward with criminal charges after the arrest and stuck by his side the entire time.
In fact, Vasquez posted a photo in Oct.