He/She managed to pay another past due loan to @harizen when he/she came back and joined the Duelbits campaign. There were other instances of delays but he still paid. Although the loans he/she took in our local lending isn't as huge as what's owed to you, I'm more inclined to believe that @asu is really in a tight spot but he/she still has the intention of paying you back.
Lending people money in bitcoin can turn honest people into dishonest ones pretty quickly. They might have every intention of paying it back but if they're unable to or the price rises significantly then it's all too easy to just disappear as there's probably little to no real world ramifications and the only damage done to them is a ruined account. That's what it looks like has happened here as he popped back to make repayments when he could have just disappeared but if he's under financial difficulty in real life then its going to be very difficult to make repayments back and would be far easier to just go awol.
Lending people money here is incredibly risky and doesn't really seem worth it in my opinion because all it takes is one person to run off with a decent chunk and your business will probably be in the red overall. You have to remember this question: why are they lending it in the first place? It's either because obviously they don't have sufficient money, which is already a red flag, or they're just borrowing to pay it back and build feedback up. Some will do this for legitimate reasons and others will do it for the long con