Can anyone relate?

I have been living with my boyfriend for Few years now and I pay for everything on my own. My parents love and support me but I took on my how rent and payments the second I moved out so my parents could retire and not worry about me. I make enough money to support myself and even though it doesn’t leave much extra it’s honest work and I am proud of it. My boyfriend on the other hang claims to be Paying for things himself but I have a feeling his parents are giving him money for rent each month. We split everything 50/50 and sometimes it’s hard and it doesn’t seem to hit him as hard which is why I’m suspicious because I make more money than he does. He’s also older then me so you’d think he’d be the more responsible one. I find it unattractive that he depends so much on his parents at this age and I just feel like I may be farther ahead of him in life even though I’m the younger one. I don’t know what to do, or sucks thinking I’m splitting this house with his parents and now him. Every time I try to bring it up he gets defensive and I’m sure he will lie and say that he’s paying for it but there’s not chance he really is. I’m not sure what to do, I guess you could say I’m just jealous but not really. My parents would support me if I asked but I’m an adult and take pride in doing things on my own if I can regardless of how hard it is. I’m scared I will grow to resent him for this.