Binky held her bash at exclusive London nightclub Whisky Mist but, although many of her co-stars turned out to show their support, Alex was nowhere to be seen.
Earlier this week, fans watched as Binky sobbed in her mother Jane's arms in the latest episode after Alex failed to deny cheating on her with a girl from Oxford.
We also told yesterday how Binky had admitted to Reveal in a new interview that her feelings are "still raw" and that she "feels very down" about what happened.
And she again hinted at her feelings ahead of her launch, tweeting: "Could really really do with a fast forward button." Binky then retweeted a fan, who had replied: "Don't worry Binks it will all work out in the end. Your mother is fab btw. x #spinoffmotherdaughtershow."
Unsurprisingly, Jane was at the 'pardy' last night and was pictured clutching a stack of 'Alexandra Felstead: Being Binky' books as she posed with her daughter for pictures.
Spencer Matthews was also there - in some rather interesting leopard print shoes - along with his ex-fling Emma Miller, Rosie Fortescue and former MIC star Ollie Locke, who is still close with Binky.
Binky seemed to be in good sprits once she had arrived at the bash, although she almost didn't even make it.
Once the 'pardy' was in full swing, Binky tweeted: ".....Will be there as soon as poss rocking up in my scruffs as won't have time to change! Oh well...Hopefully some of u will still be there."