Chas shocks the village's residents next week by deciding to marry Dan (Liam Fox). Viewers will know that she is on the rebound following her recent split from secret lover Cameron Murray.
However, Pargeter told All About Soap that Chas can genuinely see good qualities in Dan.
She explained: "They've been flirting across the bar for a few weeks, but now something is changing. Chas sees everything in Dan that she saw in Paddy - security and a complete selfless devotion.
"He'd never dream of cheating on her, or treat her the way Carl and Cameron did. Chas is starting to wonder whether she could settle down with Dan full time."
Speaking of how Dan proposes to Chas at The Woolpack next week, she continued: "It's all a bit awkward to be honest, especially as Cameron sees the whole thing. However, Chas is over the moon. She can see a happy future with Dan, even if she is marrying him because he's a safe bet."
Emmerdale bosses have previously teased that Chas's love life will take centre stage in the soap's 40th anniversary episodes. Her engagement to Dan now adds a new complication to the mix.
Pargeter commented: "Never mind twists and turns - this time there are going to be falls, climbs and loads of other obstacles. Where is all this going to end? We'll have to wait and see.
"Everything is going to come to a head in Emmerdale's big 40th birthday celebration in October, so I'd say stay tuned."