@Mayzee
It does sound like a chat or a few questions might be in order at some point?
I did flag up you've said he's very charming/nice/polite?
I do think there's a certain type who is like that - very good "soft" social skills, very charming, you feel great chemistry easily,
So it feels worth keeping them around, as if you meet you just ease into their company straight away - but in terms of what they're bringing to your life, very little!
It's the way they operate though - they're charming so they don't really feel they have to contribute much?
My long term reliable male friends (and MrC may be added to that list at some point) can be a bit rough and uncouth at times, but they're doers not talkers.
I probably wouldn't do this as it's sneaky, but I wonder how he'd react if you said you were stressed and needed support or to talk on the phone or him to come for a coffee and a chat or if you needed an urgent DIY job doing?
As I guess that's something you'd want in someone you were seriously dating.