Divorce- Locklear vs. Sambora

The marriage officially fell apart last February, but there was a buzz since Christmas that there was trouble brewing. This divorce promises to go fairly smoothly, but there is one speed bump.

There have been reports that Locklear was upset over "another woman." But TMZ is told that there wasn't just one incident that torpedoed the marriage. The way it was described was that the couple had ongoing problems -- the kind that build over an 11-year marriage.

A source tells TMZ that Locklear is handling the split "calmly and with dignity."