poo is disgusting.
There is a real person who want to eat my poo

... hence i ask this question.
Some psychologists / psychiatrists would probably say that people who eat feces are often victims of physical and sexual abuse.
Eating feces is not a natural behavior, but a learned one.
As a child, they may have been forced to eat their abuser's feces because the abuser wants to be dominant over them. Or, they may have been purposely deprived of food and forced to eat their own feces because the abuser finds it amusing.
There have been incidents of mothers and fathers abusing their children to the point where they force their children to eat their own vomit (after consuming food and regurgitating it).
The same thing could apply to feces. There are some sick people in the world, ones who think it's funny to abuse someone by taking away their food and forcing them to eat their feces or their own because they find joy in humiliating others. It's not unheard of.
Other causes for eating feces would be extreme feelings of guilt or shame connected to past physical, mental or sexual abuse the person has not yet dealt with in their life.
It's kind of like someone who murders someone else and then hacks up their body with a handsaw and sticks it in the freezer. For example, if I kill this person, then cut up their body and hide it, the act doesn't exist...no murder occurred.
The same thing could apply to eating feces. If someone was feeling shameful about being sexually abused, they then would expel those feelings through their feces. So the feces would become their feelings and if they consume their feces, they get rid of the feelings. By doing that, they erase the abuse from their life. They "learn" how do this. It's not natural.
Sometimes, none of this applies, as some people just like the smell or the taste, which I can't comprehend, but the bottom line is this: People who consume feces, whether its their own or not, are mentally and emotionally scarred.
A lot of people gave you humorous answers, but this is serious. This person has a lot of mental and emotional problems due to child abuse, and you'd be better off avoiding them -- even if you find the act of them consuming your feces interesting (or whatever it is that's making you ponder going through with it).