When you're laying in bed at night, can you imagine what it would feel like to have someone's arm around you, or someone's warm breath against the back of your neck? Perhaps just imagine that physical sensation, and fall asleep while feeling it. The emotion will arise spontaneously as a result of the physical sensation; you don't need to force it, and you don't need to exert excessive effort trying to control the manifestation to be a "perfect" relationship. Just feel your lover's presence as you fall asleep and trust that your subconscious will take care of the rest.

This lady has a good Youtube channel dealing with using Neville's techniques, focusing on relationships.