"We've known ole Dirty D for a while," Cameran said.
"We went to college together," Chelsea shared. "He was older than me. I think I was a freshman when he was a senior in college but we went to the same school and he was a fraternity dude."
"Dirty D" isn't just older than Chelsea — he's also 14 years older than Eliza.
And Chelsea revealed that Don has undergone quite a transformation since college. "What confuses me is in college he gelled his hair, he wore gold chains... and he did not have a Southern accent," Chelsea said. "And now I see him however many years later and he's in camo and his cowboy boots and has his thick Southern accent and I just wonder who he's performing for."
Ultimately, Eliza and Don's relationship didn't last — which Cameran foreshadowed, calling it a "temporary romance."
Follow the Southern Charm crew every Wednesday at 9/8c. Preview what Eliza's mother has to say about her older boyfriend on next week's episode below.