Greetings of Peace to you sistah xxxangelxxx :)
Welcome to the forum and hope you have wonderful stay here, and there are many reverts who may have been through your situations.
Well the Islamic Concept of God is that "There is only One God" .
To be a Muslim we must submit to the will of our Creator who is Allaah, Allaah is the arabic word for God. The word Muslim means "The one who submits to God". We as muslims must follow life as God commands us to, and that there is no harm in the way God tells us what to do but harm in stuff that God tells u not to do! Like smoking is harmful to your body, Allaah tells us in his Noble Book the Qur`aan to not harm ourseves, and what he the Allmighty tells us is of benefit to us.
Your first Priority is God, everything is to be done for his sake in his way, but for your own Benefit! And the Prophet Muhammad sallahu alaayhi wa salam is the guidance of Light to Humanity to show us the right path by following the way he lived as he Prophet Muhammad sallahu alaayhi wa salam is the Best of Examples , in the Quraan Allaah says
"Ye have indeed in the Messenger of Allah a beautiful pattern (of conduct) for any one whose hope is in Allah and the Final Day, and who engages much in the Praise of Allah."
Note that there are many Muslim reverts who left MANY things for the saake of Allaah, they left music, boyfriend,girlfriends, etc etc basically all bad habits, and if you like the Brother and you think he can provide for you and make you feel happy islamically you should marry him but if not you should keep away from him as you are considered (doing Haraam something forbidden in Islaam) and i can understand that maybe be really hard, May Allaah make it easy upon you,Ameen. Truly your Lord knows whats best for you dear sistah and he commands no harm on you.
There is no harm in leaving pork trust me sistah, there is a reason its forbidden in Islaam because it causes harm to the body and many other reasons. Slowly you will get used to it when you realise what your doing is better for you and not continously harming yourself.
I quote you "and theres no-one i know who could possibly understand this" Allaah is the one who created you and he is the only one who knows you more than you know you shall ever know yourself and thats a fact. Dont ever consider yourself alone Allaah has been with you every second of your life.
Anyway sistah i hope i helped a lil bit i must go, and i hope that you recieve better advice InshaAllaah esp from Brothers and Sistahs who have been in your situation :)
But please check this Vid i hope it also helps a lil bit too :)
Wa`Alaaykum Salaam