Yes you should give him a chance.  This is your dad!  Unfortunately you are both sharing the same experience but it's completely different experiences.  And you're more used to talking to your mom in a straightforward way than you are your dad.  It's weird to "visit" your dad when he used to live at home.  It's all weird. But it's worth it to stay connected.  Keep your loved ones close.  Even when they're acting out. 

Please try to get through this initial awkward gap.  In 5 years you may be the one acting out and he's the one that pulls you back down to Earth.

I really wish you and your family well, Morgan.

*Kat