Delegating time to other people is wonderful idea but sadly it's not practical. Perhaps you should consider a date night with the wife. The time that you purposely set aside to be with one another. Think about what you used to talk to her about before you were busy with the family and responsibilities when you were dating. Also think about how you talk to back then. Humor is an integral part of any relationship. Losing a sense of humor is not good. Also perhaps consider prayer as God is the glue that helps to keep relationships together.