Him?💜

So I'm 14 and going into high school I have a boyfriend and he is 15. My boyfriend only has an iPod to text and stuff but he got grounded. He always gets grounded. We used to see each other a lot but we broke up then got back together over spring break so he hasn't told his mom so we can't hang out. My mom doesn't like him but I love him he wants to marry me someday. I don't know what to do I haven't talked to him for a long time almost a month. Any advice?