As I was thinking about your post and this response, I wonder if this is also influenced by our tendency to have curated lives in which we strive to appear strong and in control at all times.
Thinking about my own moments in which I desired intimacy, when looking deeper, I was forced to admit that I was truly craving human connection, and yes, the opposite sex offers a level of connection that our own I don’t believe can fulfill the same way.
Sexual intimacy, I believe is a quick fix to a deeper human connection. Not that there’s anything wrong with exploring our sexuality, but too many eggs are placed in that basket. And unfortunately way too often relationships are used to boost our own ego rather than to get to know someone, to be us even if for a moment, instead of just you and just me.