Is Justin Bieber a controlling boyfriend?

A body language expert doesn’t think Justin Bieber and Selena Gomez have a healthy relationship.

They may speak highly of each other and appear super loved-up in photos – but is that only to our untrained eye?

Dr. Lilian Glass, body language expert for Hollywoodlife.com, told the site that Justin is usually walking in front of Selena is because he’s “insecure” about their relationship and trying to assert his power.

“Walking ahead of her says ‘power’ and that he has to be in charge,” Dr Glass explained. “Selena is happily taking a subservient role in the relationship and it says she’s insecure about the relationship too.”

It’s not all negative though.

“It’s good that they walk in step,” the Dr said. “It shows they are like-minded and both on the same page. There’s also a lot of passion between them, but she just needs to step up and take charge in the relationship.”