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Has Ronnie fist pumped his way back into Sammi's heart?

Sources close to the 'Jersey Shore sweethearts tell EOnline that "They are seeing each other again, [but] taking it slower this time around. They were just in Mexico together as well. They have a lot of history."

Speculation of the couples on-again romance started when the reality tv duo was spotted together at Sammi's birthday celebration. I know, it's hard to believe that these two are back together, but Instagram doesn't lie.

Do you see them? Right there in the middle. Sammi and Ronnie looking adorably couple-y with Sammi touching Ronnie's arm. Ugh, too cute!

Neither of their reps have commented on whether or not it's official, but, in my personal opinion, you do not invite your ex-boyfriend to your big birthday weekend celebration if you aren't at least rekindling your long lost love.

Honestly, I'm just hoping they get back together so there can be a 'Jersey Shore' wedding. MTV special, anyone?

[via EOnline]