Some people do a lot of things that are forbidden.
Anyways, if I talk to an angel who exists, then that is no different than talking to a human who exists. Respecting an angel who exists, is no different than respecting a human who exists. Asking an angel to do something that is within that angels power is no different than asking a human to do something that is within that human’s power.
We are to worship and love God above all AND love our neighbor as ourselves, so there is nothing wrong with loving and respecting others. We are not to love ONLY God but God first and then others. In fact it would be sinful not to love and respect others.