However, whilst Jess was dating Ruby, there was a lot of drama with Jess' twin sister and bandmate Lisa.
In a now deleted tweet, the Orange Is The New Black star sarcastically suggested Lisa's happy reaction to Australia's same-sex marriage vote outcome was contradictory.
“So glad to see Lisa Origliasso screaming in excitement about the yes vote after telling us she thinks we should feel ‘lucky’ we don’t get stoned to death like they do in other countries and get over it a few months ago … Really warms my heart,” she wrote.
Speaking to Kyle Sandilands and Jackie O on their radio show, Ruby, who was and still is based in the US, revealed that she and Jess had gone to couples therapy.
"We're at a point now where we properly know how to communicate at a long distance which has been the hardest thing I think for anyone in the industry, having a long-distance relationship."
"I've spent the past two years learning and sharing my life with an amazing human being," Ruby tweeted as she confirmed the split. "An experience for which I am very blessed.
"Break ups are always incredibly hard on the people involved but I can only be grateful for the experiences we shared. It's with a heavy heart to share that Jess and I parted ways a few months ago. We still love each other very much and I will always support her and be her biggest advocate. With love x."
After the break up, however, Jess shared some surprising insights into her and Ruby's "complex" relationship.
"I'm still trying to come to terms with the reality of it every day so it's really hard to explain to anybody. There was just so much that happened, so much that I can't even get into it,” she told Kyle and Jackie O.
"At the end of the day I think the most important thing to remember is that we’re all human beings, people have their struggles, people have their inner demons people have their own stuff going on.
"For me, it was time to leave that situation and be as happy and healthy as I deserve to be."
Jess also shared how her and Ruby's relationship affected the one she had with her sister.
"After almost 15 years of The Veronicas, there was no discussion, no announcement, it just stopped," Jess said in her and Lisa's reality show, Blood is for Life.
"Lis and I didn't talk for a year. I was in a relationship that wasn't good for me. I became isolated. I had nobody anymore, I only had my relationship. I didn't have my mum or my dad. When it became too much for me, I walked away."
Things turned even more sour when in 2018 Jess went public with her new partner, Kai Carlton.
"Congratulations, so happy for you both," Ruby commented on the photo, but Jess' response stopped fans in their tracks.
"@RubyRose I have requested you not contact me for over four months now. You have been given my grace of being ignored on every other private platform, so the fact you continue to ignore this to contact me here publicly under the guise of wishing me well, is continued harassment," the musician replied.
Ruby responded: "That is news to me. Copy that. Good vibes only."
If you go back through both Jess and Ruby's Instagrams, they've removed all traces of their respective ex.
Ruby meanwhile appears to be dating American actress Caity Lotz and posted a sweet tribute to her on New Year's Eve 2020.
"Happy birthday to the sunshine of my life, my ride or die, my best mate the one and only Caity ❤️❤️❤️.. It may not be a rager of a night but boy did we go ham in Party City anyway!"