Dating can feel like a second full-time job. You feel like you have to constantly check the apps, update your profiles, and swipe on new faces, lest you miss out on something. And that’s all before you actually go on any dates. In this episode, Meredith Goldstein looks at the epidemic of dating fatigue. She talks to comedian Lane Moore, the brains behind the show “Tinder Live” and the author of “How To Be Alone,” and hits the bar with Erin, the woman Love Letters is following all season. Email us at loveletters@boston.com.