I'll get you in the end!



This "Marital Chart" from 1939 brings a little science in the mix:


(image via)

George W. Crane, MD, was a marriage counselor and wrote a syndicated national newspaper column called "The Worry Clinic." See the whole booklet scanned on Flickr - "Test for Husbands and Wives"

...but sometimes we guys can be pretty much out of it:



...girls too can be difficult:


(image via)

At times you will feel sublime and exalted:


(original unknown)

or totally miserable:


(image credit: Lucio José Martínez González)

Don't be rude:





Familiar concept:



Lithuanian Folk Art shows the proper occupation for husbands and wives:



Worst case scenario - he or she turns into a frog:


(original unknown)

The REAL intricacies of romance are detailed in this awesome French video: "Can We Kiss?"