Well, it'd be easier to drop him, honestly. He doesn't seem like he wants to be into you. That said, since he's being "wishy-washy"- if you think it will some how continue- give him space. See if he comes back to you, see if he asks you to come, see if he randomly emails you, calls,etc... Chill, lay low...
Tell you what though- I dated a few people off match.co.uk (I was already living here though, trying to meet new people, not trying to meet Brits specifically, but trying to meet anyone new to date)-
Its not a LDR thing- its a dating thing in general!! I had a few "we were into each other and it was all good and all that" but then guess what, it fizzled about a month in... One that kept messing me around - missing dates and "wasn't sure" - so I said "SEE YA! I'm worth more than that!" and one who we met in person within a week (now, granted, it was much easier, given we lived in the same place)- and he couldn't stop texting/emailing/calling/sending me flowers/driving me up a wall
and we've been through ups and downs and everything in between, but we just hit 2 years.
I've also done the LDR (across the US, not across the pond) and that takes an incredible amount of trust, work and time and effort- (and money!!!!) and sacrifices... you've got to be committed to each other for that. And mine started on a whim and was long distance for several years before we finally lived together (and it did turn into a disaster in the end after 6 years together)
So my point is, stop reading into the relationship so much and overanalysing. It will work if its supposed to. Otherwise, date whoever, whomever, local, long distance, workmates, whoever -but put yourself first. You are worthy. Someone will fall head over heels for you and want to never leave you alone!! They're the ones you want to be with it!!