By Jen Heger - Breaking Celebrity News Assistant Managing Editor

Kelsey Grammer's pregnant fourth wife, Kayte is extremely lonely and miserable because she misses her family and friends that live in her native England, Breaking Celebrity News is exclusively reporting.

As previously reported, just one month before their twins are due, the couple, who originally married in February 2011, renewed their vows at the Little Church of the West in Las Vegas.

"Kayte is just absolutely miserable because she feels so lonely and isolated," a source close to the situation tells Breaking Celebrity News. "She and Kelsey are living in Chicago right now because he is filming his television series, Boss. Kayte has absolutely no friends and no support network around her. Kayte is alone most of the day while Kelsey is filming and at their recent baby shower for the twins all of the guests were Kelsey's fellow cast members and crew from the show. Kayte didn't have any of her friends at the shower because they are all in England. It's been a very rough pregnancy for her because she is pregnant with twins. Kayte is hoping that once the babies are born she won't feel so alone."