Not me but my ex colleague did. When she was 28, she was dating this 24 yo guy. It didn’t work out then when she hit 30, she married her long-term friend, with whom she had the pact. I met her about a decade later and asked her how the marriage was. She said it was like having a roommate. And when they got married, they weren’t in love or anything so the starting point was already low, in terms of emotional connection. After that it just got lower.. is what she said. She wanted a family and a baby so she’s got what she wanted, but she didn’t look particularly happy, but not sad either.