In continuing to attend the same social hangouts, you are bound to keep attracting the same kind of men.
Your nightlife is too habitual.
It’s human nature to attend the same social hangouts, given that we are already familiar with them, and there is a degree of comfort that comes with that.
As a single man in your 40s, the bulk of your friends are already married or in long-term relationships.
It isn’t like when you were in your teens or twenties when the lion’s share of your friends were single.
Without a significant number of single friends, there isn’t much of a pool of prospective dates in your social circle.
When you are hanging out at a friend’s home for a get-together or barbecue over the weekend, all you see are your middle-aged friends who are there with their spouses, or long-term partners, with children running around.