Coop is not in love with Kyle. On a rational level, it makes no sense whatsoever. Of course, this begs the question when was love ever rational? When it comes to love, the last thing Coop is is rational. On the other hand, Kyle is rational to a fault. He schemes, he plots. Kyle's heart is not on his sleeve. It never has been. In my mind, this chapter only confirms that he hasn't changed one iota since the college days. Now that Winston serves no purpose, he's tossed aside. Kyle's a great guy!
My sense is Coop is overwhelmed with guilt over Kyle breaking it off with Winston. He feels responsible somehow. Add to that that Kyle is pulling all-nighters on divorce law. Coop feels he owes the guy. Coop is not responsible for Kyle's happiness. Hopefully he'll come to his senses about that.
It's not surprising that Chase will react negatively to Coop's admission. Now we'll see what kind of fight is really in him.
Storyline aside for a moment, Monsieux Jwolf, you do weave a fine tale.