Romantic love can cause you to experience strange and changeable emotions. It can make you feel as if you are on a mountaintop at times and at others, down in the deepest depths. This roller coaster of intense emotions indicates that you are in love.

Attraction to Your Partner

When you fall in love with someone you are drawn to that person with an intense desire. Your interest in her grows with each interaction. You tend to focus more on her good qualities than the negatives. You want what is best for her and will even go out of your way to make her happy -- bringing homework to her when she is sick. You are driven to connect with her. You will find any excuse to call, text, video chat or meet-up in person by going out on dates or stopping to give her a warm greeting when you pass in the hall.

Feeling Excited

At times, you experience intense happiness, writes Helen Fisher, a biological anthropologist, in the chapter, "The Drive to Love: The Neural Mechanism for Mate Selection," from the e-book, "The New Psychology of Love." You may feel a flutter in your stomach when you see your partner or when your phone pings with his message tone. You may be in a good mood most of the time. Negative events may not upset you as easily as they would otherwise.

Desire for Closeness

When you love someone you will have a strong desire to be physically and emotionally close. You will want to spend as much time as possible with your partner; whether hanging out in person or talking on the phone or online. You will want to make physical contact through hugging, holding hands or standing so close together that your shoulders are touching. You are likely to get excited about all the things that you have in common with your partner -- focusing on similarities over differences, according to the article, "Your Thoughts on Falling in Love," on the KidsHealth website.

Intense Concern

When you are in love you are likely to look to your partner to meet your emotional needs. You will want to know what he is thinking and feeling at the moment, his dreams, goals and desires. You will share yours in return. You value his opinion and will seek his advice when you are faced with decisions. When things are going well, you may feel in high spirits. If something troubles him, you may be just as affected, sharing his pain or discomfort.