No you're not being unreasonable. I wouldn't necessarily give the ring back but I wouldn't just let him keep dragging his feet either. Weddings are exhausting and complicated to plan, even the simplest ones, and most of it falls on the bride. It's OK if he has some commitment issues but he should at least be willing to acknowledge them and deal with it.
Liesje & the K9s
Nikon (GSD) U-CH SG Alta-Tollhaus Bono SchH1 KKL T1 FO PA TF-III FDCh-S CL1-R UJJ U-CA HIT TT CGC
Coke (All-American) VPC's Coca-Cola CGC, couch warmer extraordinaire
Indy (All-American) Blue Horizon's Indigo Girl, flyball star in training
Rainbow Bridge Kenya (GSD) U-CH Alta-Tollhaus-Krieger Lamb Chop CL1-R CL1-F RA HIT TDI TT CGC
vom Blauen Horizont / Blue Horizon GSDs