Just when we thought that Demi Lovato and Wilmer Valderrama were so in love with each other, new rumors emerged that she's cheating on her boyfriend. Many people were happy to see the cute photo of the 22-year old singer and the 34-year old actor on Instagram. The "Really Don't Care" hitmaker posted a throwback Thursday photo last September 11 and captioned it: "#TBT to that one time we had an hour to kill before our movie so we went to the furniture store and took a nap....(heart emoticons) missing you."

Demi Lovato and Wilmer Valderrama are currently busy with their careers, but even if they were apart, they use social media to express how they feel for each other. However, it seems that the songstress is having her cake and eating her pie too. While the actor is away promoting his new TV series "From Dusk Till Dawn", the singing sensation was caught hanging out with her ex-boyfriend Joe Jonas.

The 25-year old musician posted a cute video of himself together with his former lover on Instagram a few days ago. Joe Jonas captioned the clip, "Tonight was amazing. Fun keeping this a secret @ddlovato". His comment sparked rumors that they are secretly dating. Jemi fans were thrilled to see the former couple together again.

Joe Jonas was Demi Lovato's special guest in her show in Los Angeles. Hollywood Life reported the two singing the popular track "This Is Me" from the soundtrack of "Camp Rock" where the two first got together. Apart from the video, the singing heartthrob also posted a photo of them on stage and wrote: "Surprise LA! @ddlovato thank you for having me."

The "Skyscraper" hitmaker also posted a picture of himself with her former boyfriend on Instagram. She captioned the photo, "Thanks @joejonas for the awesome surprise!! #staplescenter #4yrssincewesangtogether #demiworldtour"

It's really cute seeing the former couple together again. Are you a fan of the Demi Lovato Wilmer Valderrama relationship or do you prefer seeing Demi Lovato with Joe Jonas?