<human>: Can you give me the gist of the text in a nutshell?

My boyfriend and I have been together for about three months and dating for five or six. I'm crazy about him, and he's the first guy I can see a future with. He says he loves me too, and he's talked to me about marriage and having kids in some hypothetical future. We are not sexually active because our church discourages against sexual relations before marriage, but we passionately make out often. Most of the time, he seems to be very attracted to me, and he tells me that he thinks everything about my body and personality is "ideal." 

But recently, he said he has been going through short periods where he is not sexually attracted to me and feels apathetic toward me. When this happens, he finds himself checking out other girls and imagining a relationship with one of them, but only briefly until he remembers me and how much I mean to him. Yet even in this process of remembering, he is still emotionally and sexually detached from me. He says that this has happened in every relationship he's been in, and that he is frustrated by his occasional apathetic and physically detached feelings. 

Is it normal for guys in relationships to experience an ebb and flow in their physical and emotional feelings toward their SO? And if not, should I be worried? What action (if any) would you suggest?
<bot>: —Sometimes my boyfriend feels disinterested in me sexually and emotionally and feels attracted to other women, even though he loves me and is committed to our relationship. I don't know if this is normal or not.