I'm honestly okay with anything, Ritsuka comes from a canon where he literally ends up with a much older man kissing him just hours after they've met and this happens regularly. While Ritsuka would understandably freak out the first time, he sadly gets used to over touchy people very quickly.

Nothing you've listed above seems like pushing the line with my character and it doesn't bother me. If it's IC for your guy, go ahead!