Olivia Culpo and Danny Amendola just can't quit each other, it seems -- they were spotted back together over the weekend, showing off major PDA ...TMZ has learned.
The recently broken up couple were very much not so at a friend's wedding Saturday in Houston, where we're told Danny was in the wedding party. Sources tell us Olivia came as Danny's date, and that they were doing lots of kissing, hugging, and hand-holding.
Keep in mind ... they split up less than 3 months ago.