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.

How do you and your partner spend the time in bed just before you zz? Do you A) watch TV together; B) read your own books; or C) have a pillow talk?

If your answer is C, you're more likely to be in a happy relationship, say relationship experts. Couples who talk in bed have more than good communication, they strengthen their emotional bond too.

Having bedtime talk, snuggling up, and holding hands make for quality couple time, and it doesn't always have to lead to sexual contact. Pillow talk is simply lying next to the one you love and whispering to each other little encouragements, compliments, dreams, secrets, and anything light-hearted and positive.

All the intimate conversation and physical closeness let you feel mutually appreciated and loved. Refrain from nagging, picking faults in your partner, or even discussing chores, work or money matters -- make it your special "us" time and keep it as that.

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.

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