After walking the red carpet with her beau at the Sunset Tower Hotel in West Hollywood, Bella opened up to ET about how important it is to have his support.
"It's so awesome. I love him, so it's really nice that we can be here together and that he's supporting me," Bella shared. "It feels great."
Bella also got candid about another one of her biggest supporters -- her older sister and fellow model, Gigi Hadid.
Bella, who called her sister's support "such a beautiful thing," explained, "I feel it's hard to be in a business by yourself and the fact that I have her with me at all times, I can call her and ask her about things, is so amazing."
Her sister, her boyfriend and her mom, Real Housewives of Beverly Hills
star Yolanda Hadid, have also been a big source of support for Bella's battle against Lyme disease
, which became public late last year.
"It's hard, and it's something that I'm still working through," said Bella, who's doing her best to balance her career and her health. "Just staying on set till 9 p.m., it's always hard but I guess it's worth it. I guess I'm doing something right."