I’m with Gabriella here, just like drinking, gambling or drugs it isn’t always destructive. Nearly all men look at porn, some of it is no more than explicit love making and many women would enjoy that, of course there is also the nasty content that is very distasteful. Watching pornography does not mean that your partner does not love you, or that you are inadequate in any way, it is mostly titillation.
If the OP or any other women have this issue I suggest asking your partner to find some nice porn, just search female friendly and watch it together, you may be surprised by the results.
Porn is a fact of life, treat it just like drink or gambling, a tipple or a flutter is nice, too much is an addiction.