Im so scared to fall in love again?

i was in a relationship for 3 years, it was abusive and he was cheating and i got so hurt i just managed to get on my feet again after therapy and taking depression pills. i met this guy and i feel so happy again, hes introduced me to his family and hes met mine and they have met eachother (only the mums so far) he wants to come to my dad and ask for my hand in marriage and i want that but im soooo scared. im scared hes lying about it or hes cheating or hes messing me around.. he hasnt done 1 bad thing to me hes always sooo nice and caring and sweet nd funny and hes a real decent guy and i feel blessed but i cant make these feelings go away. everytime i meet him and we have a good time i come home and want to cry because im so scared of getting hurt or to attached.. im really falling for him and im happy but i dont want to at the same time because i keeo thinking its going to go wrong.. i dont know what to do,, any experience or advise apreceated..