Justin Bieber Makes Sweet Vow to Selena Gomez?

Justin Bieber tweeted a sweet sentiment no doubt directed at Selena Gomez. Does his vow indicate big changes in the making?

According to a report from Hollywood Life, it sounds like the As Long As You Love Me singer might be finally catching on to what his Wizards of Waverly Place beauty needs to see and hear.

"Won't let u d

own," Justin tweeted on Saturday and most assume the message is for Selena Gomez.

It's about time Justin started behaving himself and appreciating the relationship he has with Selena. Even though he may not have officially cheated on the Love You Like A Love Song singer, he certainly did big time damage by cavorting around New York City with Victoria's Secret model Barbara Palvin and then meeting up with her again in Miami earlier in December.

Selena Gomez loves Justin Bieber and it seems like the feeling is mutual. The Boyfriend singer needs to grow up a bit and work hard at keeping the vow he made to his girlfriend via Twitter. That's not a bad New Year's Resolution, Justin!