I have just come out of a very manipulative and controlling relationship. It's been about a month and then out of the blue I suddenly got a very snappy text demanding that he come round now to collect something that he had left here. I said no, I didn't want him showing up now and he continued to insist, saying my reasons for not wanting him to were not good enough and he WOULD be turning up. I told him if he wasn't going to be respectful of my reasons then I didn't want him coming anywhere near my house or me full stop.
He then lashed out, and then suddenly started saying the next day he can't be without me, he needs me in his life and that if I don't want a relationship with him then we will just have to see each other and sleep together on a casual basis because he needs to have me in his life 
(no consideration for whether this is what I want!) I said no. We kept arguing and he kept trying to turn the break up around on me - I gave him chance after chance so clearly the fact I'm not willing to give him another one means I've met another man.
Now that I have refused to give in and give him another chance he has snapped again. He says that I must return his things AND an expensive present he bought me on one of the occasions I gave him another chance by post and he's trying to impose deadlines for this.
A) He lives round the corner. His house is round the back of our local post office. I am not taking time out of my day to wrap it all in brown paper, address it up, go down to the post office and pay a load of money to get it sent there. I don't have time or money to waste on childish things like this. I have offered to drop his things off at a place of his choosing.
B) Whilst I don't want the present and it will probably spend the rest of its time gathering dust in some drawer, I don't see why he should be able to demand presents back because he didn't get the answer he wanted. I haven't asked for presents back from him. It's a principle matter I guess.
C) He has gone this long without those things. I have had that stuff left at my house for about 6 months while we were together as well and he didn't even notice until I told him. So I know for a fact that this is all an attempt to spite me and I don't want to bite.
At the moment I have just ignored all his messages and demands. I'm not sure whether to just do as he says and hope that gets rid of him, or whether to continue ignoring him. Part of me feels I need to stick to my principles and not let him walk all over me, but part of me feels that if it is all to spite me and get a reaction, then refusing will be a reaction that gives him an open door to continue harassing me and possibly even more so because he feels justified.