Leon didn't actually crave all that much physical attention. He was never that needy for it, at least most of the time. He didn't have a lot growing up, so it just became his normal. And he was truly okay with that.
And when he started dating you, he made sure you knew about this. He didn't want you feeling hurt over his feelings about physical touch. He wasn't ever denying you, or neglecting you. Its just how he was, with everyone.
You didn't really care. If he wasn't comfortable with it, he wasn't comfortable with it. You loved the man, a few less hugs wasn't going to make you fall out of love with him.
Tonight, you sat on the couch, watching a movie. He got home from work, took a shower and headed to sit by you. But it wasn't normal. You saw him inching towards you, "sneakily." What was his plan?