Get a Closer Look at Lauren's Engagement Ring

"I honestly can't wish happiness for Arie right now," writes one of this season's contestants.

Bachelor Nation was put through the wringer with the 5-hour finale of "The Bachelor," which included a three-hour episode on Monday, followed by a 2-hour "After the Final Rose" on Tuesday.

In the two-night event, viewers watched Arie Luyendyk Jr. propose to Becca Kufrin, but that engagement didn't stick. Instead, Arie went back to Lauren Burnham, asked if she'd take him back and then broke it off with Becca ... all on camera. Arie then popped the question to Lauren and she accepted the proposal.

It was a messy, messy ending to what was an otherwise pretty boring season of the ABC series and Hollywood was very vocal about how Tuesday's finale played out online. Stars like Ellen DeGeneres, Josh Gad, Justin Long and "The View" co-host Meghan McCain were among the celebrities who helped make #AfterTheFinalRose become the #1 trend on Twitter Tuesday night.

Here's what they had to say about it:

Former "Bachelor" and "Bachelorette" stars also chimed in on social media, including one of this season's contestants, Bekah Martinez, who said she just couldn't "wish happiness for Arie right now." Martinez also told Access Hollywood: "I just think that even if they were to stay together for the rest of their lives, I think he would certainly cheat on her without a doubt. I can't speak for Lauren, but I don't think that Arie is capable of having a monogamous, serious relationship … really don't think that he's mature enough to handle a real committed relationship. He's impulsive and he doesn't think through his actions."

See more social media reactions from "Bachelor" alums below:

See the Ring! ABC See Lauren Burnham's Ring After Arie Luyendyk Jr. Proposes on 'After the Final Rose'