Rachel McAdams and Michael Sheen have been together for about two and a half years. Perhaps longer. Many assumed that they got together when they filmed Midnight at Paris, but Rachel insisted in interviews that “every relationship” she’s ever had with a costar has begun after they worked together. So that means she wasn’t putting out with Ryan Gosling while they filmed The Notebook either, I guess. Where was I? Ah, yes. Rachel and Michael Sheen. I’ve had the feeling for a while now that Rachel would really like Michael to propose, and that he’s just one of those “Why Do We Need A Piece of Paper To Prove Our Love, Baby?” kind of dudes. Rachel just seems… like she wants the piece of paper. Michael does not the piece of paper historically. He and Kate Beckinsale never married (despite her desire to marry), and he’s had other long-term relationships that never involved a ring too. So what makes Rachel think she can change him? According to Star, Rachel is trying to get him to propose so that her relationship with his daughter will improve…?

Though Rachel McAdams seems to be very much in love with boyfriend of two years Michael Sheen, there’s trouble in paradise. The 34-year-old beauty is said to be hoping Michael, 43, will propose soon so that she’ll be more accepted by his family – especially his skeptical 13-year-old daughter, Lily, who apparently gives Rachel plenty of attitude.

“Lily has a hard time looking at Rachel as a stepmom,” an insider tells Star. “Rachel believes that if she and Michael got married, Lily would be nicer.”

Lily’s mother, actress Kate Beckinsale, 39, was Michael’s partner for eight years, and they never tied the knot – something Kate seems to regret. She reportedly told Rachel to put her foot down with Michael and demand a ring, something Kate herself never did.

[From Star Magazine, print edition]

Yeah, his daughter is 13. “Skeptical” comes with the Tween-Teen Handbook, and trust me, it’s just going to get worse. The Handbook also includes “moody, distant, ill-tempered, tempermental, hyper-emotional and boundary-ignoring.” It’s not about Rachel, it’s just Lily’s age. And I don’t even think that Kate Beckinsale has anything to do with this – by all accounts, she and Michael have a good relationship and they have no issues co-parenting their daughter, so I don’t think this is a case where Kate is bad-mouthing daddy’s new girlfriend, you know? Kate probably does have sympathy for Rachel. Kate was with Michael for eight years! Out of everyone, she’s the one who really knows his marriage-phobia.

Photos courtesy of WENN.