Xavier had slipped out of bed early in the morning. Once he had woken, he found it difficult to fall back asleep. There was no conversation between them, and the feelings from the night before had died somewhat, leaving him strangely uncomfortable. No, familiarly uncomfortable, and it seemed better to leave than deal with the awkward silence until Lennox woke.
Going outside for a cigarette was the universal solution to any problem, so he did just that.