People can be very complicated. In many circumstances, people experience mixed emotions. It’s possible that your partner loves you completely. It’s also possible that he’s turned on by images of other women. While it’s normal for people to have contradictory feelings… some individuals are better at recognizing and discussing their emotions than others.
For instance, it’s easier for people with a confident style of attachment to acknowledge having mixed emotions. On the other hand, people who have a cool style of attachment often have a difficult time experiencing (let alone describing) their emotions.
To make matters even more complicated, it’s possible for a person’s emotions to influence their behavior without their awareness, especially for people with a cool or confused style of attachment. If you think your partner has a cool or confused style of attachment, working with a therapist familiar with attachment-related problems is the best way to solve such issues.
Hope this helps.