The marriage of Bush frontman Gavin Rossdale and No Doubt singer Gwen Stefani could be on the rocks, according to a report from the tabloid magazine Star. The report alleges that the 46-year-old Rossdale and 42-year-old Stefani have been in and out of marriage counseling in an effort to save the relationship, which sources say has been battered by a continuous stream of revelations about Rossdale's past. One insider told the Star, "He's just not been honest with her about his past." Just a couple of years after they were married in 2002, Rossdale confessed that he had a now 22-year-old daughter, model Daisy Lowe, from a previous relationship with designer Pearl Lowe. Then in 2009, a male transvestite named Peter Robinson, a.k.a. Marilyn, said that he and Rossdale had had a brief fling. Rossdale admitted to the relationship, saying it happened when he was 17 and was "experimental." A short time later, Hole frontperson Courtney Love claimed to have had an eight-month affair with Rossdale -- while he was dating Stefani. Love also hinted that Rossdale had cheated on his future wife with others as well. A source said, "Gwen often wonders what other secrets Gavin is hiding. It's getting harder and harder for her to go through the motions with a man she sometimes feels like she doesn't even know. Rossdale has also reportedly had a tough time dealing with Stefani's success as his own career goes into decline. An insider said, "When they got together, it was Gavin who had the big career. But now that the tables have turned and Gwen is more famous than Gavin and that's been a really hard journey for him." The two rockers met in 1995 when Bush and No Doubt toured together and began dating soon after. Rossdale told us that it was love at first sight when they met before the tour started: ["They said, 'We want to introduce you to the singer from the band,' and she came to the dressing room and that was kind of it -- my life was over, Cupid struck, whatever you say. And she went out of the room and I turned to them and I said, 'That was the best idea you guys ever had -- how long can she come out for?' So that was it, really. I think we lasted a few weeks and then that was it. It was out of our control.” They have two sons, four-year-old Kingston and three-year-old Zuma.