I'm enjoying the online dating/attraction system more than I thought I would. Yes, my sims get love-letters and presents from practically everyone they come into contact with -- including married people -- but you can ignore the pop-ups, and unlike memories, you don't have to do anything about them. Since I'm playing a decadynasty, it gives me a way to discover who's a townie as opposed to a NPC. It also helps me discover their traits.
My sims are taking romance a little more slowly these days instead of trying to nail down an engagement, or at least the option to go steady, the first time they come into contact with an eligible townie. They get and send love-letters; they actually get asked out on dates -- something I haven't seen since Sims 2.
If you're tired of the phone calls, keep in mind that you don't have to answer the phone. You'll find out automatically if it's an opportunity, a phone call from a friend, or someone asking you out. My sims never answer their phone.