RomCom/ Chicklit (maybe) set in London where the heroine has a hairy Irish/ Scottish boarder/ roommate

[Nikki]

Hi! I've been recently revisiting all the romcom books of my adolescence, all save one, because I can't remember anything about it no matter how hard I rake my memory. All I vaguely recall is that it has a heroine who takes in a boarder/roommate who is either Irish or Scottish (mostly Irish, I think) and that the boarder is extremely hairy. Seriously, the heroine comments on his hairy chest/arms many times throughout the novel.
It's a romcom/chicklit with typical quirky family shenanigans - along the vein of Too Good To Be True by Kristan Higgins or Bet Me by Jennifer Crusie.
If anyone could untangle this for me, I'd be eternally grateful!
I read this book about 10 years ago, I'm really not sure what year it was published, so sorry.