I don't see it as a bid deal, or see anything there even.
And even if Ashley did fancy Ola abit (as it's not uncommon for people to still fancy others even if they're in a comitted relationship with some one or even married) I doubt it'd be anything for either James or Karen (that's the name of Ahsley's wife, no?) to worry about.
Besides, plenty of times there is going to be long hugs, lots of pecks, holding of hands, back/hip patting and all that on a show like Strictly with certain couples (depending on their dynamic). It's a close business dancing, and some get close even when not dancing, but in a platonically friendly way, not a romantic way. Las year I remember some people thought James and Denise looked to get on 'too well' adn felt sorry for Ola, but I just think it's reading too much into what is a sometimes overtly tactile situation where couples are experiencing an intense experience together (and the closeness can just eb a sign of how they handle things).
I don't see anything myself, and Ola adores James so doubt she'd find an attraction in Darren who I think she sees more as a brother type person. And even though Darren seemed well chuffed to get Ola on Launch night, doubt he would like her to any point that would jepodise his marriage and family life. Lots of men (and women) in relationships have said they like the look of Ola, so it jst standard really. ANd appreciation of aesthtics doesn' t always mean a follow on to feelings of something deeper.