Khloe Kardashian and Lamar Odom are rumored to be reuniting on Friday, but what does that mean the couple is ready to reconcile and work on fixing their marriage?

Lamar is reportedly planning a huge surprise for Khloe and returned to the Palm Springs area on Wednesday night.

"Sources connected to Lamar tell us he wants to surprise Khloe with something big today -- for their anniversary -- that will blow her away," TMZ reports.  "We're told he plans to spend 'well over $100,000' on a present."

However, rumor has it the only thing Khloe wants is for Lamar to get help for his alleged crack-cocaine addiction.  She reportedly gave Lamar an ultimatum letter to assure him she is not willing to get caught up in the romance of the day.

"Khloe is giving Lamar until their four-year wedding anniversary to show some sign he still wants to be in their marriage. If not she's filing for divorce," a source told InTouch.

The source also revealed to InTouch what Khloe said in her letter to Lamar.

"You put me through hell," the insider added.  "She basically wanted him to know: 'I look great, I have an amazing life, I feel good about myself - so f--- you.'"

Khloe Kardashian has dropped the Odom in her last name on Instagram and now Twitter account, igniting rumors that Khloe will be announcing a divorce on Friday.

However, an insider close to the Kardashians told PerezHilton.com she is waiting until "Keeping Up With The Kardashians" is done filming before she announces a possible divorce.

"Khloe is steadfast, that she won't decide whether she wants out of the marriage until she is done shooting the current season of the ... show. She has been through so much the last year with Lamar, and Khloe just doesn't want this to be played out in front of the cameras," a source told the gossip blogger. "It's a very sensitive situation, she is being a trooper and is being a total professional while shooting. Another reason why Khloe isn't making any decisions yet, she doesn't want this to loom over Lamar in the future, no matter what she decides to do."