I don't mind, therefore, that your two gentlemen are interested, or that they aren't making much headway.
I don't mind that they aren't making much headway because I didn't expect them to. 
mnli hypothesis: I don't mind that they aren't making much headway because I didn't expect them to.  premise: I don't mind, therefore, that your two gentlemen are interested, or that they aren't making much headway.