Some relationships just dont seem to add up.

Relatives, especially, look at a couple and ask, What does she see in him? or vice versa.

They come from two different worlds! is another phrase depicting what seems to everyone, but the lovers themselves, an incredible mismatch.

What anyone with experience appreciates is that relationships can be based on two things: math or chemistry, but usually not both.

The mathematically mated seem to meet each others needs perfectly, at least on paper. They hail from similar backgrounds, like the same things, and may even look strikingly similar.

Those who have come together based on chemistry seem to mystify the mathematicians.

Nothing about them adds up. Shes dark and hes fair; shes tall and hes short. He went to graduate school and she has a high school diploma. Shes from the city, and hes from the country.

But they bond. Thats love and thats the power of chemistry.

Mathematical mates seem to reinforce the saying, Birds of a feather flock together, while the chemically connected are depicted better by the notion that Opposites attract.

No matter how youve come together, or what makes you stick together, enjoy it, and leave the bickering about your union to the chemists and the mathematicians.