The on-again/off-again couple - who split two weeks ago because the 20-year-old actress felt she couldn't trust the Canadian singer - enjoyed a romantic dinner in Los Angeles last night (19.11.12) amid reports their reunion is still rocky.
Shortly before their date the 18-year-old 'Boyfriend' singer - who is kicking off his new Believe Tour in Pittsburg, Pennsylvania, tonight (20.11.12) - admitted to Oprah Winfrey on twitter he finds growing up in the spotlight tough after she compared him to Michael Jackson.
He wrote: ''Growing up in front of everyone is not easy.''
His date with Selena came just one day after they were spotted hand in hand at the star-studded after party for the American Music Awards in Los Angeles before leaving the bash at the Marriott Downtown Hotel together.
The duo - who have been dating for almost two years - have had a tumultuous time recently because of trust issues and reports he spent time with Victoria's Secret model Barbara Palvin in New York earlier this month.
Selena stormed out of a restaurant 10 minutes after sitting down with Justin because they had a huge argument on Friday.
She drove home alone but the 'Boyfriend' singer followed her and she refused to let him enter her property.
His white Ferrari was spotted at her house the next morning suggesting they made up overnight.
But despite spending lots of time together over the last two days, sources told gossip website TMZ.com that their relationship is by no means stable.