The former Hollyoaks actress, 23, uploaded a Snapchat video of herself singing along to JoJo's son 'Marvin's Room', specifically the line: "I ran into your homeboys / They're all f**king idiots / You're not even my boyfriend."
An innocent car sing-a-long or a message to Jez?
JoJo's song is about a girl who misses her guy, then finds out he's seeing someone else. It includes the lyrics: "Baby, I'm the best so you can't do better."
Stephanie and Irish model Jeremy, 25, met in the Celebrity Big Brother house in January and their relationship has rarely left the headlines ever since.
At first it seemed a fairytale romance with the pair gushing about each other on TV and on social media, but soon it became tumultuous with numerous public splits and reunions.
They split for a fourth time at the start of May.
Then, Stephanie shocked fans by Instagramming – and swiftly deleting – a post claiming to be pregnant. She's not mentioned it since and her rep has not commented.
Her alleged post read: "Yeah loved him unconditionally, after a week of hell and late phone calls and pain he's caused I still kept my phone so I could find him, find out I'm pregnant and he says he doesn't love me anymore and blocked."
Jeremy, however, released a statement to Twitter this week saying he would take responsibility for his actions if the pregnancy news is true.
"Just to clear, if what is circulating is true, I'll always be responsible for my actions, and I explained to Steph I'll speak to her, and do everything for her, if she stops drinking and partying knowing she's "pregnant". I'm sick of tit for tat but I won't let anyone slander me.
"I haven't been ideal in the relationship whatsoever, I'm trying to move on peacefully, it's a shock to most, but a kid can't fix a broken relationship."
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