What should I do now

Me and my boyfriend are going on for more dan 2 and half years…we bth love each other a lot and want to marry …my boyfriend was a bad guy first but he has changed a lot just for me and I know it bt d prblm is he says that I shd marry a good guy who’ll be accepted by my parents…he knws and even I know that we cant live widout eachother but for my good he is sacrificing for me.but I love him a lot and want to marry only him …what shd I do now .plzzz help