ReimuxRemilia started off pretty strong, but never quite developed into one of the big Touhou ships, despite there being a canonical hug between the two, which is more than can be said for 90% of other Touhou ships. I guess you can't really predict how this stuff shakes out.
Regardless, this was very cute. Great art, too. The artist really has a knack for those 'ba-dump' panels when a character says something super-romantic or cool.