This fellow could easily be busy with work and needs to just decompress once home.

My dating years decades ago pre cell phones and social media mind you . I was not a person that got off work and wanted to spend loads of time on the phone with anyone.

I spent all day talking to people . Didn't mean I wasnt interested , just meant work drained me and days off I was much more talkative.

I agree with Moogies response.

Good luck