The ????? ????? only mentions dancing and singing around the Chosson and the Kalla sitting together, it doesn’t say anything about anyone dancing with the Kalla in any way.
These are the sources for ????? ?????:
hebrewbooks.org/pdfpager.aspx?req=8901&st=&pgnum=206&hilite= and hebrewbooks.org/pdfpager.aspx?req=8901&st=&pgnum=193&hilite=
SAM2 wrote “I once tried to prove from the Gemara in Kesuvos 17a that there is nothing not-Tznius about dancing with your wife at the wedding”. SAM2 Where’s the proof? rav ??? dancing with your wife is ??? ???? which the Remah in ??”? ?”? brings would be assur.
So far I haven’t found any early ???? for ??? ??? dancing together, and as far as reasons go, can someone even show me a ???? in a ??????? ??? for that part of the ???? ????, and why it has to be done in public?