(Bloomberg) -- US homebuilder sentiment rebounded in May but remained low overall as affordability concerns continued to weigh on the outlook during the spring selling season.Most Read from BloombergStocks Fall, Oil Rises on Doubts Over US-Iran Deal: Markets WrapUS and Iran Far From Deal as Bond Rout Piles Pressure on TrumpBillionaire Rinehart Bets $100 Million on US Defense StocksWinners and Losers From Trump and Xi’s Beijing Summit TalksIranian Media Said US Offered Interim Waiver on Oil Sanct