Ok, I tried and I don't think he's interested. Either that or he's just very very slow. Either way, nothings going to happen

He was at my workplace today and asked me to work in his office again, rather than us having to go to and fro all the time. As of next month when i start my new job we'll be sharing permanently on the 2 days per week he's here. I came back in after a meeting late morning and he said now the sun was out he was going to take a document we were working on outside to review and was I coming with him?
Now, 2 weeks ago he had said how much he wishes he could get off site at lunch (citing better food options, change of scene etc) and how lucky old me had a car and could escape etc. So, as we're walking towards the elevator he says he didn't bring any food in today and doesn't really want the cafeteria stuff and he'd like to take advantage of the weather. So, given that it was practically lunchtime I suggested, very casually, "hey, well I have my car, how about
well known coffee shop chain 10 mins away. We could take the file and work on it there at the same time?" His reply? "Hmm, well I just had a coffee and I'd really like a cigarette and I won't be able to smoke there. Let's see. It's certainly an idea though". So I just smiled and said sure, just an idea and we carried on and sat outside and worked through the doc.
After a while of that he says there's a concert he's thinking of going to on saturday night but doesn't have tickets yet. I say it sounds great, he should get tickets and he asks me if I have plans for the weekend. I said 'only for Friday' and instead of asking me to go with him he starts asking about my friday plans and never goes back to the subject of the concert....confusing.
Once we're back in the office, after a while I'm starving and, not wanting to suggest lunch again, I start eating the stuff I brought in. He doesn't say anything, then a little while later sighs and says he's going to find a sandwich. Odd, because I gave him an option, he didn't take me up on it so why sigh now? He comes back with his sandwich but also a bag of my favourite sweets (he knows this, we've discussed it) and says they're to share. He's never brought me anything before. Again, confusing.
Then at the end of the day we're walking out the office down the hallway - him to the elevator and me to the mail room - and wishing each other a great weekend as he's not in tomorrow, Friday. He goes off to the elevator, then comes back and carries on with a conversation really about nothing, then wishes me a great weekend again, smiles broadly and goes back to the elevator and off home.
Also, re. the whole ideas about moving to Capital City, today he was talking about trying to pick up extra days here, in this company instead.
I just, I really do not get it at all.
