If someone had good experiences with people the app recommended previously, then the app recommending someone can be enough to make them willing to date them.

If someone had good experiences with people the app recommended previously, then the app recommending someone can be enough to make them willing to date them. It's basically the same mechanism that works for physical attraction, i.e. if you had good interactions with people of a certain "type" then you'll be attracted to other people of that "type".