Scotty, who lived with Steph and Jeremy in the Celebrity Big Brother house earlier this year, said he had no idea the pair split - even though they've now very recently reconciled.
Geordie Shore star Scotty, who won the 17th series of CBB, told The Sun: "I hope they sort it out. I think they would be better not in a relationship.
"They should be like they were in the house, just having the craic and having fun. When everyone starts knowing your business in a relationship - that's what ruins it."
Steph and Jeremy are now back in the UK having rekindled their relationship in Spain.
Jeremy, who admitted to sleeping with club dancer Caroline Pope in Newcastle after his CBB eviction, also revealed that he slept with a woman named Dani the day after he split from Steph earlier this month.
But Steph and Jeremy are giving their relationship another go, and he has since said that she is girl he wants to marry.
The couple found love in the CBB house but their romance was controversial at the time as Steph was in a relationship with model Sam Reece.
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