No matter how he feels about any potential complexities with the Cathedral, Megatron does not stop Optimus pulling him close. He shutters his optics as he rests his forehead against the Prime's, and hooks his arms around his waist.

"I missed you too," He says quietly, almost telling Optimus not to make any promises this time. He doesn't, though, because he knows that's something that would just make him feel terribly guilty, and unnecessarily so. He doesn't try to keep talking about the troubles they face here, either. It can wait, at least for now. "I do not like being apart from you. It feels very wrong."

Quieter, still: "I love you. I hope you don't let something as simple as being a universe away make you forget that."