I never gave my son bottles myself. Your baby probably doesn't understand why you won't let him nurse when you are there and that can potentially make things worse, not better.

Have your DH use paced feeding with the smaller bottles to mimic breastfeeding and spread the feed out. That helps meet your baby's sucking needs better.

Paced feeding:

http://kellymom.com/bf/pumpingmoms/f...ottle-feeding/

Going out for walks is a good idea. That always helped my DH a lot.