firstly, you should not believe in all things you see or hear in the world wide web. moreso, claims or promises. however convincing or sincere they may be. this is not an ordinary soiree of minds.
secondly, you yourself should not be obliged to expect anything in return. it is not a give-and-take situation. again refer to the first point. if you receive anything tangible or positive out of this, take it as an uncommon occurrence. rather than the norm. and there is no need for an explanation from other people's behavior. there are no rules to speak of.
thirdly, in your case, you seem to have grown an attachment. which is the worst thing that could happen. whether the other party can reciprocate is not the issue. whether you have invested time, money, or other resources... this is the risk for such a trial and error arrangement. to err is a possibility. but to persist is a futile attempt.
if sympathy is your plea, then it is clear that you cannot receive it from the former. the next is your best bet.