Either way, most of us move on from relationships with people we knew in high school and never see them again after a few years.
Or, you may be able to change their minds about him if you listen to them and talk to them. They've lived much more of life and have seen many more people go through relationships, and they may have good reasons for being concerned about who you're dating or how the relationship is turning out. You may be furious at them now and may think they're being unfair, but you need to work things out with them. They will be there for you 10 and 20 years from now when everyone else in life may have let you down. But the other attorneys here are right: your relationship with your parents is the most important relationship in your life, and it will last your entire life. Believe me, we remember what it was like to have feelings that strong for someone else and to be angry and hurt when anyone tried to keep us apart.