How to nurture a Capricorn relationship?

ok, i am a 2? year girl (aries)and iam dating a 43 year old man (capri) ok, he is nice to me when we are together he's always kissing me telling me that he loves me and such and that he likes me so much, the dowside is that he is sometimes cold like never calls cold i fell him when he is around but when he isnt i dont know how he fells. He tells me that he fells very happy with me, and that he thinks of us a lot. How do i nurture a relationship with a male capricorn? Is he playing is he for real?