Help?!?!?i cant stand my dad?!!?!?

im 12 and am at my dads 1/2 the time, and i love my moms house. my moms always make me feel better, but its like my dad has no emotion. his house is SO boring and during summer i spend all my time with my cousins, and he wont let me see them . . .i don't know why, and when i asked he said "because me and your mom decided that" i asked him why and he said "because we did" he treats me like i don't have feelings, he ignores me all day,and when i say i don't want to do something ( like go to a sgi-its a "religion"-meeting with him) he says "that'sok", i don'tknow what to do, my mom knows how he is, so she empathizes, but she says its good for me, which i have mixed feelings about, but its not like hes a deadbeat or stoner, he has a job and we rent a pretty ice house, he is the healthiest person i know (he works out 1 hour a day, eats super healthy . . .) but he is so self-centered. please help me!!!