Sienna Miller dumped Rhys Ifans after he found text messages on her phone from her former boyfriend Matthew Rhys. She was probably cheating on him. Her reason for dumping him was … he was too suspicious and jealous. No wonder she’s called Slutty Miller.

Sienna Miller wasn’t shy talking about her boyfriend Rhys Ifans in an interview with Elle U.K. She said:

"When his name is mentioned, it makes me smile like a fool because I instantly think of him and it makes me happy. He does just make me happy.

"I don’t know why people find it so unlikely. We started as friends and then it just slowly developed. I don’t think either of us was expecting it, but it truly has been the most wonderful thing. I totally love Rhys but most of all, he’s my best friend. He makes me laugh. Not just a little laugh – he can completely floor me laughing."

The actress also reveals how they like nothing more than pretending to be schoolkids "bunking off", spending the day eating bizarre concoctions like stuffing sandwiches and chips dipped in milkshake.

"[Rhys] is the best cook ever. He does these mad dishes that taste completely wonderful, like carrots poached in mandarin juice," she says.

"My perfect day starts with bacon cooked in maple syrup and a cup of tea. Most times I’m so busy I actually feel guilty about having free time. Rhys and I have this thing about “bunking off” and taking time out. A couple of hours off is called Games. The whole afternoon is Double Games and the full 24 hours is Sports Day. On any of those days, food is involved big time."

She adds: "Rhys and I have this horrible addiction to caviar. We’re junkies. We do the whole works: blinis, chopped eggs, chopped red onion, sour cream… It’s total bliss. [And] I have loads of other food fetishes. Pickled Onion Monster Munch, WH Smith Chicken & Stuffing sandwiches, milk chocolate with salt-and-vinegar crisps, in the mouth at the same time – you just have to try it – and French fries dipped in chocolate milkshake."

Despite rumours of an on-off engagement, Sienna insists: "No ring. It’s so embarrassing when these stories come out and your relationship has been somehow fast-forwarded. We both had our mums on the phone. It’s just awkward. But I’m so happy with our relationship as it is. It has always been incredibly easy and uncomplicated and those stories make for complications that just don’t exist."

She adds: "I must have a thing for Welshmen. My first serious boyfriend was from Llandudno. Jude is half-Welsh and then Rhys is the full item. Weird or what?"

There have been rumors that the couple were going to get married, then more rumors they split. This interview at least confirms they are still together.

The picture above is Sienna playing a blood-drenched Baroness in the upcoming G.I. Joe movie.

Sienna Miller (26) and Rhys Ifans (39) are finally getting married. Rhys asked Sienna three times already, and she finally said yes. The couple will wed this summer. With a 13 year gap Sienna is going to be hearing a lot of people say Rhys looks more like her father than her husband, and all that. It may sound shallow, but that’s how most people are. If Tom Cruise wasn’t worth a billion dollars, would Katie Holmes be able to handle the same pressure Sienna is going to be experiencing? Even Katharine McPhee married a much older guy, and she gets the same "he could be her father" comments. It’s hard to see this marriage lasting with the big age gap. They should really just stay close friends.