- yes, the handling is something you can work on later. Although some are just more active, curious, flighty than others.
- yes, absolutely leave her alone til she's eating regularly.
- to get her to eat, leave her alone. Adults can take a lot longer to settle in than juveniles. She's already been through a lot since you brought her home. Just let her be.
- definitely DO NOT move her to try to get her to eat. That's just adding more stress. Stress = refusals. Stress = regurgitating if the animal does actually eat.
- and yes, adults do take a bit longer to acclimate. And yeah, they do have different personalities and mannerisms.
Please understand that I'm not trying to rag on you here, but trying to help...
It seems to me that something is a bit lax regarding your handling. BPs are not a fast species. In fact they're pretty slow as far as snakes go. So to allow the animal to "escape" like that leads me to think something is a bit off with your handling. Letting them roam a bit is one thing, but allowing them so get into dangerous situations and areas should not be happening. That's already 2 "close calls" with this animal in a matter of 6weeks. And since the animal isn't eating, it shouldn't be handled at all yet.
Also, you mentioned you have another snake. Are you following proper quarantine procedures with the new snake?