Before I was in a relationship, I didn't have much sex. My first sexual intercourse occurred while I was travelling overseas on a holiday by myself. I met a woman in hawaii at the airport, and later had sex with her.

I had done a lot of masturbating prior to this. I had often thought about having sex, and I found that my sexual drive caused me to behave in ways that I normally wouldn't. 

For example I would follow women I found attractive, or I would try to look up their skirts, or I would wander about at night to try to look into bedroom windows.

When I met someone that I knew I would marry, I thought I would be able to have sex as much as I liked because my wife would always be available to have it with me. This turned out to be untrue. My wife didn't want to have sex as often as I wanted to, and I found myself still masturbating while I waited for the next time to come.

I don't think women understand the power of their husband's sexual drive. 

Men are attracted to women by how they look. It doesn't matter if they are strangers. Men will look at a woman dressed in  a certain way and will start feeling horny. As soon as they ejaculate, the feeling of horniness goes, but will return in a couple of hours. When the sexual desire comes upon a man, it becomes his dominating thought, and it demands to be satisfied. That's why many men then masturbate in order to relieve the pressure on their thoughts. If unrelieved the pressure grows and if the wife is unwilling to have sex, then some men will look for other women to have sex with. 

The sexual pressure is constantly present in a man's mind until relief comes.

Most women are not as interested in sex as men. 

Women are more interested in relationship.  Women have sex with a man in the hope that the man will want to stay in their life and have a relationship with them. 

Some women use sex as a bait to catch a man, and then when the relationship is happening, they are not as interested in sex anymore. Women enjoy sex, but as part of a fulfilling relationship. Men just want to put their penis into a vagina and ejaculate. As soon as ejaculation occurs, a lot of men lose all interest in the woman. The woman then feels hurt and used because she didn't get what she wanted which was relationship. Men will say anything they think a woman wants to hear in order to have sex.

Wives who have sex with their husbands when not really wanting it, feel used by their husbands. Women also can be selfish when they demand sex from men who are not in the mood. 

God created sex to be enjoyed in a committed relationship between a man and a woman who are one person physically, spiritually, emotionally, and mentally. 

Sex is a part of the relationship, not the main thing. If a man demands sex then he is being selfish, and his relationship will be harmed if the woman gives sex to the man when she is not wanting to have it. If the man wants sex with his wife, then he must give her what she wants. He must romance her and give her a good relationship. Then if sex happens, it will be enjoyable for both of them. This will build the relationship.