"Abel met up with Bella last night for her third birthday celebration at L'Avenue", a source told the outlet.
Bella Hadid seems to be back together with The Weeknd after being apart for two months. "They were very flirty with each other throughout the night, and when he was feeding her macaroons, it was apparent there were sparks", a source revealed to ET while another added that the birthday girl and her ex-beau were also seen downing tequila shots with Hadid's friends.
The brunette beauty was spotted partying on Thursday night in NY with the singer, who she broke up with in August earlier this year.
Insiders told the website the I Feel It Coming singer sent Bella a birthday message as she celebrated turning 23 earlier this week. "It was a small group and mainly consisted of her closest girlfriends".
Although the crew was "drinking for several hours", it was not a "wild" occasion.
Bella looked incredible at her party, showing off her toned stomach in a black crop top, pants, a sparkly Christian Dior choker and show-stopping earrings. "Her and Gigi were attached at the hip the entire night and were taking many photos together while smiling and laughing". Again, nearly one year later, they split up again in August this year.
Per one supply, The Weeknd "did reach out to Bella during the day to wish her a "Happy Birthday" and they have been in touch". "They are in a better place right now but are trying to keep things on the down low. Bella is prepping for her fashion week commitments and Abel is working on his music and his upcoming acting debut".
And according to a second source, while Bella had a room at a hotel - and returned there during the day - she stayed at The Weeknd's apartment two nights in a row.