Just like to say Big hugs... my DP was very similar with our son... At the hospital after he was born he cut the cord, held him while i had a shower, was all over him but when we got home things changed, he refused to change him (the poops made him gag...weak stomach) i breast fed so he couldnt feed him, i thought perfect time for him to bond was bath time... well not sure why but DP resused to bath him and wouldnt talk bout it... Not sure if its cos he was so little and DP was scared of not holding him right in the bath, i thought maybe it was weird for him to bath his son??? At 3 months i decided to express milk so DP could get a feed in to spend time with him... in the end i would do one feed a day expressed so DP could bond this way.... it also gave me a chance to have a shower in peace and left the 2 alone without me watching over him....

But really its only been the last yr or so (DS now 3) that he has really been showing interest in our son... maybe cos now he can play rough, play trucks, ride bikes, play catch etc... i'd say just find something your DP is willing to do and make it his time, leave them alone for a while (so he doesnt feel like your watching him ... thats what my dp would say)

Good luck and hope things work out..