The actress explained that there is a change ahead for her mischievous alter ego after her recent meddling in Bart McQueen and Sinead O'Connor's on-off relationship.
Maddie has attended sixth form college with Callum since September. However, Callum has often kept himself to himself and refused to interact with his fellow students.
Bowman told OK Magazine: "Maddie's a bit of a gossip girl, always in trouble with the lads. Right now, she's causing a lot of mayhem with her rival Sinead, who's had a thing with her ex-boyfriend Bart.
"But I can let slip that Maddie and Callum are going to get a little closer. They're an unlikely couple, but that's where Maddie shows her vulnerability - she really falls for him. He's cool, but he's got his eye on someone else!"
Laurie Duncan, who plays Callum, added: "Callum's not exactly desperate for any relationship, he's much too introverted and likes to keep himself to himself and read his poetry - which unfortunately seems to make him all the more alluring to some of the ladies!"
Hollyoaks airs weeknights at 6.30pm on Channel 4 and 7pm for the first look on E4.
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