Where do you draw the line between "hard to get" and "not interested"?

I am hoping some fellow Flutherites can bring some method to my madness (?) or drill some sense into my head (?!)

For some brief background… I got out of a long term relationship a week ago. I initiated it, I was ready, and I am not unhappy about it all. In fact, I am much happier.

The explanation for it: it came to an end. Not really any more colorful than that. Anyway, I had become attracted to a friend over the past few months. I had not really noticed this person before, and we had kept fairly regular contact and he had been consistently sending me flirtatious messages calling me “beautiful” “lovely” “I’d love to do something sometime”, etc. I never really paid much attention to these – I had a boyfriend and I didn’t really care.

This isn’t the sole reason why I broke up with my boyfriend – it just sort of pushed me in the direction when I realized I was capable of having feelings for someone else. (That was a big flag for me that I wasn’t going to hang on to my feelings for my ex).

To get to the point: I’ve seen this guy quite a bit the past few weeks. We went out, and had a great time. Really great! I know he likes me – he has been chasing me for months. He was polite, flirty, the nine yards. Nothing physical but its sort of early for that. Thing is, I haven’t heard much from him since. He has called a few times but I’ve either been busy or missed the calls. I’ve returned them but then I guess he has been busy or missed the calls. Other than that, we haven’t been in contact. I feel almost as if he has lost interest since I am now actually single! Go figure. As time has gone on I have started to have feelings for him, we have a lot in common and tons of chemistry (at least I thought so).

Currently we are both swamped with assessments. However we have been swamped over the time we had been seeing eachother and texting (which there has been none of as of late).

I am not a fan of games, but obviously I am not going to chase this guy and call him or text all day. I can’t figure out if he is playing hard to get now, or if he is genuinely not that interested. I am not that worried about it, since I have had two calls but I have no idea if these are “friend” calls or “following up” calls.

My concerns are: he isn’t actually interested. Maybe I’m making a big deal out of nothing? Maybe he is worried about being the “rebound”?

Tell me, where do I draw the line between not interested and playing hard to get? What should I do? I would appreciate any (less erratic) insight. Sorry for the wall of text!!