The Hollyoaks actress and former contestant is said to have intended to be in the audience for the first live show to support the professional dancer, but may decide to do so anyway despite their recent split.
Longchambon recently ended his relationship with his former Dancing on Ice skating partner Metcalfe after he allegedly developed feelings for new skating partner Ghadie.
"Jen was always planning to go along as she has tickets as Sylvain's partner and wanted to cheer him along and give him support," a source told The Sun.
"Now that's changed she texted him and said she might come anyway.
"Can you imagine how uncomfortable Samia would feel if she kept seeing Jen in the audience?"
Ghadie recently revealed she had split with her former Coronation Street co-star Will Thorp in December.
The soap actress has reportedly revealed that she is concerned about a backlash from fans on the first Dancing on Ice live show.
A friend said: "She is fearful of the abuse and the reaction she will face when the show starts this Sunday. She wanted to hide out with her mum."
Dancing on Ice launches on Sunday, January 6 on ITV.
Photo gallery - 'Dancing on Ice' 2013 contestants: