- Chief Tyrol & Cally
- Dualla & Lee Adama
- Starbuck & her Pyramid jock (what's his name?)
- Helo & his Boomer
That's not counting the couple that was already married at the end of season 2, Saul & Ellen Tigh.
The Helo/Boomer marriage was a bit of a surprise, not that they'd want to get married but that Adama Sr. would sanction it. Another measure of his trust in her, and his conviction that she's firmly changed sides. I'd known she gets sworn in as a Colonial officer again (thanks Entertainment Weekly for that spoiler photo), but it was "Lt. Sharon Agathon" that surprised me a little.