SusieL66, I'm not surprised you're feeling hurt about the loans! To be honest I'd be annoyed if my OH even took out a new credit card without discussing it first and the thought of three loans would send me through the roof. We discuss everything financial, that way we're both certain of what's in the accounts and no nasty surprises when bills come in (we have separate accounts and a joint account but in practice it's all joint funds).
You really need to speak to him - at least you can raise the subject very easily due to the embarassment of being told this during a credit check! Three loans sounds very worrying to me (it's usually cheaper to take out a slightly larger loan than splitting the debt several ways). Perhaps he didn't realise that his credit status would be taken into account during the check, or perhaps he wanted to be 'found out'???