Um... I suggest watching the ending again. Squall was on the balcony. He and Rinoa kissed. It was all there.

Without reading WAY too much into it, as I'm sure a lot of folks will, turning over R=U stones, Cloud-- er... I mean, SQUALL went through that whole time compression crap again, there was a lot of stuff that just messed with his mind, he and Rinoa found their special place and all was happy.