Need help ladies

Okay ladies my 3 year old son goes to south Carolina for 2 weeks in June an July to apparently spend time with his biological father , he saids to me an my husband he just sits there at the house all day , if you only had 2 weeks out of the whole year wouldn't you plan to do things with your son ?? I'm sorry but I think it's sad. An he also told me first thing I got him back last visit that his nana hits him... is that acceptable??? Because I'm pissed. No rude comments