When you're in a long-term relationship and things have become "routine", it's easy to start taking each other for granted. It's not that you don't love your guy as much, it's just you don't show it as often as before. Keep your love connection strong with these sweet acts that say "I love you".

Do small favors for each other, such as recharging each other's cell phone, topping up coffee for your partner, etc.

Leave a note on under his pillow that says "You're the best hubby -- ever! Thanks for always being there for me."

Run him a hot bath (complete with a glass of wine by the tub) when you know he's coming back home from work.

Tell him one thing you appreciate about him everyday, and vice versa. You'll both get an ego boost.

One in five of all married couples spy on each other's emails and text messages to ensure they are not cheating, say Oxford University researchers.

And 13 percent of those surveyed have confessed to checking up on the browser's history to find out what their partner had been surfing.

While many couples said the internet was useful for maintaining a relationship, they also admitted it could be a threat by opening up the opportunity for "online infidelity".

Unsurprisingly, 97 percent of respondents would be unhappy if their partner fell in love with someone else via the internet and 92 percent would not be pleased if their other half disclosed intimate details of their relationship to others.

When it comes to visiting adult sites, however, men and women have slightly different views on the matter, with men more likely to accept such behavior in their partner than women.

What's your love destiny? That all depends on the size of your pout, according to a study from the University of Leicester in England.

Couples whose lips are of a similar size and shape are more likely to stay together. The researchers found that 88 percent of happy couples had lips that mirrored each other's.

The study also showed that while men are instantly attracted to women with a luscious pout, they don't consider them marriage material. In fact, women with thinner lips are 57 percent more likely to have longer relationships than their pouty-lipped counterparts. Ditto for men: Thin-lipped guys are 39 percent more likely to have a longer-lasting relationship compared to men with full lips.

The size of your kissers can also reveal loads about your personality, say the researchers:

If you have...

A large mouth:

You're laid back, relaxed, easy, generous, and enjoys being in the middle of life.

A small mouth:

You're independent, strong-willed, precise, have great endurance and fighting spirit.

Full lips:

You're emotional, passionate, sensual, expresive, talkative and outgoing.

Thin lips:

You're efficient, achieving, disciplined, make clear and precise statements, and get on with life without fuss.

The next time you and your guy head down to the ice-cream parlor, eyeball his order to get the inside scoop on his personality. In his book What Flavor is Your Personality? Dr. Alan Hirsch, neurological director of the Smell and Taste Research and Treatment Foundation in Chicago, uses the results of a personality survey to match people's traits with their favorite foods, including ice cream. "It was amazing to discover how distinct personalities corresponded with ice cream flavors," says Hirsch.

Based on the science of "flavorology", here's what your guy's favorite flavor says about his personality:

Vanilla
Contrary to what you may expect, vanilla lovers aren't bland or boring. Rather, your guy is quite the risk-taker who sets high goals for himself and tends to live a hectic life with an overly filled schedule. He's fun-loving, expressive and prefers a close, secure relationship.

Most compatible with: Other vanilla lovers

Double chocolate chunk
Your partner is creative, charming and enjoys being the life of the party. When it comes to your love life, he often expects a lot of attention from you, but he also puts in just as much effort into the relationship.

Most compatible with: Butter-pecan or chocolate chip lovers

Strawberry
Your man is loyal, trustworthy, and tends to be a little reserved. He's not one to fall head-over-heels in love with someone in a flash, but when he does go into a relationship, he stays committed.

Most compatible with: Chocolate chip lovers

Chocolate chip
He is a confident and ambitious guy who is charming in social situations. Because of his go-getter nature, he can be intolerant of defeat.

Most compatible with: Butter-pecan or double chocolate chunk lover

Butter pecan
He is a perfectionist who is conscientious and detail-oriented, which makes him a very attentive lover or spouse. He also tends to be sexually reserved.

Most compatible with: Other butter-pecan lovers

How can you tell whether a guy really likes you or if he's just looking for a casual hook-up? According to anthropologist David Givens, Ph.D., who specializes in nonverbal communication, when a man is serious about the relationship, he demonstrates loving acts that show he cares. So, you know you're more than just a fling when he:

• Holds your hand
• Grooms your clothing, or plays with your hair 
• Doesn't lose interest after the third date if sex hasn't occurred 
• Calls you the day after making love 
• Doesn't let his eyes wander when he's with you 
• Attends to your needs (but not excessively so)
• Touches your arm, shoulder, or back -- but not at every opportunity 
• Doesn't make a pass on the first date