Chris Webber -- 'Ice Cream Couple' Is Doomed ... She'll Leave Him In 2 Years!

Remember that guy who REFUSED to share his ice cream with his GF at a Pacers game last year?? Well, they're totally gonna break up ... so says Chris Webber.

Webber -- who happened to be announcing that game for NBA TV -- was at LAX this week and told us Jake Moran and Georgia Arnett are still actually together ... despite the massive public humiliation.

"She was a nice girl," Webber said ... "She felt sorry for him."

But pity can only get you so far -- because Chris says their relationship clock only has about 2 years left before she leaves his ass for someone who's a little less stingy with the frozen desserts.

So the question is ... was the mint chip worth it??