Take a deep breath - no, the mistakes will not affect their future relationship. Their bond is going to develop once your two boys are going through the teenage months and are growing up, the same as human teenagers don't grow up nicely and it is going to change again when their hormones settle down as adults, but they are together because they WANT to be together!
Our bonding guides are here as a help to understand what is going on when you have never bonded before and to hopefully prevent newbies from just dropping a guinea pig into another one's cage or from separating too early because they do not understand dominance behaviours. You are not the only one with anxiety issues that has fallen into that trap.
Good that you have found somebody to help you translate as most of our specific behaviour terms are not covered in a dictionary! Since I am not a native English speaker myself and only started learning the basics as a teenager at school I appreciate your problems! I have learned most of my English by reading books and then living in the country and watching a lot of tv in the early years to understand the different accents and slang. I still have a very noticeable Swiss/German accent when I speak (as those members that have met me can attest) and I still struggle with words that contain both a w and v close together.
