Relationships

So I had a toxic relationship I was in for about a year and a half,, my friend made me realize it was toxic and helped me out of it. I used to cry every night over my ex and I had gained feelings for my friend. A while later we’re together now but my parents do not like it and think he’s a rebound only in it for sex. I try to sit them down and have an adult and serious conversation with them but they don’t want to have one and act like children. Opinions on what I should do