He takes hours to reply to messages. When I say hours, I mean it could be up to 10 hours. Sometimes even the next day. Doesn't like phone calls apparently so we never speak on the phone. Have raised this issue with him and he just says I need understand that he's "busy". I don't understand how someone can be too busy to reply to a text. It literally takes 2 minutes. In my experience, any guy that has been interested in me has always wanted to text/call a lot, so I'm interpreting his lack of texting/calls as him not being that interested, which is making me pull back a bit. Is this a petty reason to call things off with someone?
We have been dating for a few months.