I was coerced into entering this contract and he would deny my mahr or prolong it until after the contract ended (I would have to beg for my right to be fulfilled), so when you say it’s bordering haram relationship is it haram on me too..?

You should come out if it asap. And yes if you accept it your are bordering haram as well and must pull out. Ask him, if the term has not ended, to bequeath you the remaining period to cone out of the marriage