What would've happened if Rachel and Ross went to Greece together?

I'm just really wondering what would've happened if Rachel and Ross actually went to Greece - to the honeymoon of Ross and Emily.

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I think it was wildly inappropriate of Ross to suggest that, and Rachel to accept it.

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Rachel might have gone into the whole trip with the hopes of something happening between them (or maybe just really wanted a nice free trip but I think that's less likely or not her main motive). She was still very much in love with Ross, so much so that she was willing to fly out to Ross and Emily's wedding and possibly stop it to tell him she loved him. With Emily not showing up to the airport (she did but Rachel had no idea), Rachel might've thought that this was her chance to win him back.

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Ross, I don't think he was in the headspace of wanting to get back together with Rachel, he wanted Emily at that point, so I don't see him actually initiating anything in Greece, or if Rachel did, he might've turned her down. But he did suggest he and Rachel take a vacation together.

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What do you guys think?