Why wont anyone answer my question!?!?!?

Have you ever considered naming her Angelique Jayde. You are overworking the J A angle. Turn the two names around. Start with Angelique. You and your family are correct, the other names you suggested sound entirely too much like your niece's name and would seem like copying, no matter how good your intentions, plus the girls would notice it as they grow up. Just a peaceful alternative that allows you to use two names you love together without offending anyone.