@Embarrassing, please read this article. It may help you to determine your feelings and stance on this issue with your boyfriend. It talks about WHY pornography is harmful to a relationship, to intimacy within the relationship and how it is damaging to a female partner in the relationship.

From the article Is Porn Cheating?:

"Here are a couple of ways porn harms us and our partners. Porn gives a high that is very addictive, leading to the need for more and more in order to feel satisfied.

Women can become especially hurt by their partners who watch porn. Female porn stars are paid to behave as they do on screen -- they are actors of male fantasies and not representative of most normal female behavior in bed.

Watching porn can create unreal expectations and when these expectations aren’t met there is disappointment, disconnect and a breakdown in intimacy.

Internet pornography is a growing trend that has many people worried about their relationships. Is it cheating? And is it a "normal guy thing"?

Here's what Dr. Phil believes:

- It is not OK behavior. It is a perverse and ridiculous intrusion into your relationship. It is an insult, it is disloyal and it is cheating.

Consider how it makes your partner feel. If it makes your partner feel ugly, hurt, deceived, lied to or inadequate, then it needs to stop. If it is eroding your relationship, it's gone too far.
^This result could also be from anything else that causes these feelings in your partner, too, not just porn. I had it over lack of attention, neglect.

-Pornography isn't real, it's a fantasy. It's makeup, beauty lenses, hair extensions, camera angles, lighting and silicone! It's also somebody's daughter who has taken a really, really wrong turn. She's demeaning herself, debasing herself, humiliating herself and she's being exploited by people who are funded by you. It is a sick, demented, twisted world. It's not healthy, it's not natural and it's not normal.

-Viewing internet pornography or engaging in cybersex is a short step to taking cheating to the next level.

-You need to tell your partner that viewing pornography is absolutely, unequivocally unacceptable in your relationship. Draw a line: Your partner needs to choose between the pornography or the relationship."