Thank you for the info!
UPDATE:
After a few weeks of having their pens next to each other about 3 inches apart I took them on their 3rd date technically 1st at home in a neutral bathroom. I am thinking it should have been in a smaller bathroom but will try another date soon.
I expected Bun (female) to be aggressive towards Bo (male) since she is no longer free roam in my room, landing, second bedroom and they are both in pens in my bedroom. Bun laid down, and didnt do much, she moved a bit around the bathroom but Bo kept going into Bun’s carrier (I need to get one carrier big enough for both as he is a 10 lb rabbit and she is a 4lb rabbit). They were fine together and they didnt take much interested of each other in the beginning. He stopped and I put Bun next to him, he asked her for grooming and she refused as she did the last 2 other dates (not in our house) and I pet them together. Later Bo kept coming up to Bun seemed like a bit of chasing and he nipped her in the side (rib area). I ended it there. The real issue is ME. I know I cant intervene between their relationship but I am too afraid of something negative happening.
I am so nervous about bonding and worried something will happen, I’m sure the rabbits can feel my energy. I thought I could take this (bonding) on but I am a nervous nelly sweating during bonding sessions. Any advice or help? I have read so many articles and watched videos on bonding but still worried I won’t notice some negative body language or that I am not picking up on stuff. I am typically intuitive with my rabbit Bun but Bo scares me a bit, he is very loud, he is giant, he is not used to people, and he is very destructive, very loud, always chews a lot and Bun is not at all. Could in be age difference and personality?
Also Bo keeps peeing all over the place and pooping all over. Marking?