Dianna Agron, Glee - The 28 year-old actress is better known for her role as Quinn Fabray in "Glee." She also played a heartbroken wife in Sam Smith's latest music video, "I'm Not The Only One" and from there, rumors spread.

During the shooting of Sam Smith's music video, Dianna Agron and Jack Street met. Jack Street is Sam Smith's musical manager and he tends to tour along with the musician.

As they were in LA shooting "I'm Not The Only One" three weeks ago, seemingly Glee's actress and Street were seen partying at LA's hotspots, including The Abbey, according to The Mirror.

After that, the situation fired up and not long afterwards, Caroline Flack and Jack Street split up.

"Caroline didn't know Jack was at those places and only found out later through friends. This caused a big argument and they split. They couldn't see an alternative," a source said on the matter.

Apparently, the "friendship" that Street and Dianna Agron developed was a huge issue for Flack.

"It was hard for [Caroline] to find out about Dianna - especially as Jack was the man she thought she was going to marry," a source revealed The Express.

One more issue that only added to the already spreading rumors about Glee's actress and the musical manager was a tweet he posted after splitting up with Flack.

"Vote for @carolineflack1 6225210. You'd be silly not to," it was meant to be an encouraging message for his ex-girlfriend and Flack was fast to give an answer.

"@jackbstreet easing your guilt?? Fill yourself with glee Jack," The Daily Mail noted and the message was later on erased by Flack, but not before fans reacted and supported Flack by telling her "she deserves better," among other things.

Glee's Dianna Agron was spotted in London these last few days.