get back in(to) circulation

1. To begin engaging in social activities, typically after an absence. Now that my exams are done, I'm excited to get back in circulation and see my friends again. Jill wants to get back into circulation after her lengthy hospital stay. I was sick for weeks, so, believe me, I am thrilled to get back in circulation again!

2. To begin dating again after the end of a relationship. She has mourned her husband and is ready to get back into circulation. Matt's single? Ooh, then I hope to spend some time with him once he gets back in circulation. The break-up was really tough, and I'm in no rush to get back into circulation.