I think I'm in love with my stepbrother?

Ok, this may sound really wrong, but there's a long story behind it. I'm 14, and my step brother, Alex, is 16. We met when I was 10, and we were friends before both of our parents got divorced and they just got married.(kinda weird) i have always had a crush on him, and thats why I was so upset when his dad and my mom started dating. Plus, right after his parents filed for divorce my parents did, and three weeks later I found out, not from my mom, that they were dating. So I think my mom cheated on my dad. So anyways, I'm having really strong feelings now and Idk what to do!! I think I love him!