Well, it looks like D.J. jumped off a waterfall just to avoid a conversation with Steve!
So that means the spinoff’s series-long question of “Matt or Steve?” will once again rear its head, and it appears that even though Steve replaced D.J. with another girl, she still has enough feelings for him that nobody will have easy decisions to make.
Considering both characters are seen wearing those same outfits in the wedding scene, where D.J. was not soaking wet, it seems likely that Steve and C.J. will not get married in Fuller House Season 3, at least not without some big snafus.