They are an expectant peron. They also expect favours to be done for them willingly, so i believe that the word you are looking for, is selfish, or expectant. Hope this helps! :)
If someone expects something, such as getting a certain present for Christmas, you could call them expectant or hopeful. The word expectant is an adjective.
A person who always expects good things to happen is called an "optimist" A person who always expects bad things to happen is called a "pessimist".
The difference between ideal and reciprocal altruism is in one, the person expects nothing in return. In reciprocal altruism, the person expects something back at some point.
The meaning of the term assuming, or assumption, has to do with when an individual or group expects or thinks something will happen. Usually it is when people are asked to do something the person who asks often thinks the person they asked will automatically do it.
Lucky.
An editor.
you may be able to call this person a blackmail victim.
what is another word for person
Eponym
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A person who easily gets offended and retaliates can be described as having a "short fuse" or being "vindictive."
The person is a participant (taking part in something).