Nick Lachey has given his blessing to his ex-wife's new relationship - insisting he hopes Jessica Simpson is very happy with U.S. sports star Tony Romo. Simpson, who divorced Lachey in 2006, has previously dated rocker John Mayer, but started romancing Dallas Cowboys star Romo last year (07). And now Lachey, 34, has dismissed rumours of a rift between him and his former spouse, wishing her well in her new relationship. He says, "I wish her nothing but happiness. If she's found that (true love)... good for her."