Why do they congregate in groups of four

Yesterday Lar and I [Jewels is still in the East] were at the Stephensons' place for a DELICIOUS dinner, consisting of Bentos from a local food truck and fresh fruit. We were lazing around in the pool after our meal and I asked the following question:

"since I'm the only single one left in the family, will you guys take me on your next cruise?"

Would you like to know what happened next? SILENCE. for an extended period of time. Then glances pass, then laughter. Never an actual answer.

I'm pretty sure that 's a no.

Thanks a lot guys.