Sam Frost just proved you really can be friends with your ex.

Stand aside, relationship gurus: Sam Frost is coming through and has something to say.

Forget about the rules of engagement or what your best friend tells you is true. Because judging by the 27-year-old radio presenter’s latest Instagram story, you can, in fact, remain friends with your ex.

Reality TV stars Sam Frost and Dave Billsborrow. Source: Instagram.

This weekend, Frost posted a series of photos and videos of herself hanging out with friends, including one Dave Billsborrow.

In case you needed a reminder, the duo met last year on reality dating show The Bachelorette. 

Billsborrow (or "Dave the Plumber" as we all came to know him) was one of the 15 men battling it out for Frost's love and attention.

Listen: Dave Billsborrow made a guest appearance on our Bach Chat podcast recently. (Post continues after audio.)

Though his quest was ultimately unsuccessful, with Frost choosing Sasha Mielczarek as her one true love, it's clear there's been no bad blood since filming wrapped, with the pair hanging out over the weekend and enjoying the warmer weather.

Billsborrow's girlfriend Courtney also joined the pair for drinks and cosied in for a group photo.

Sam Frost and Dave Billsborrow doing Sunday right. Source: Instagram.

It's not the first time the two have hung out together; in fact, it's become a regular occurrence. Billsborrow has also remained close with Mielczarek since the reality TV wrapped up.

Speaking to Mamamia on the No Filter podcast last month, Frost told Mia Freedman she and her former TV flame live "across the road" from one another in Sydney.

They've become good friends since the show finished, with the pair often sharing a glass of wine after work together on their balconies.

Well if you're not going on dates with them, why not be mates with them? Right, ladies?

Listen to Sam Frost talk about her relationship with Sasha and friendship with Dave on the No Filter podcast.