does it actually gets better??

ever since my boyfriend cheated on me with the girl he told me not to worry about(day before my birthday), di na siya yung ma kita ko sa future ko. however i can still feel na mahal ko pa siya thats why i forgave and accepted him even tho i was dealing with the trauma he gave me that time. ff 6 months later, i found myself na slowly naalan na ng feelings sa kanya but di ako maka let go cause he's so persisitent saying he changed na daw and that tagal na daw yun. also, ive been askin myself din whats wrong with me cause why now? bakit ngayon ko lang to na feel na nag bago naman siya. bat ngayon ba slowly mawala feelings ko. im so scared to leave him kasi what if wala na ibang magtanggap sa akin. leaving him pains me and staying pains me too. i dont know when will it gets better and do u guys think he's the one for me?