Set the boundaries. This is your space, so if you don’t want him there, make him leave. This doesn’t have to mean violence. You are not limited to the rules of our physical reality. You can build walls, do a spell that creates a force field around you, whatever you want! Play with it. But don’t give him any extra energy by getting upset. Focus elsewhere, block him from getting to you, and continue on with what you want to do. Boundaries are very important, so whether or not this guy is consciously doing this, it’s a lesson you need to learn. Don’t just allow things to happen that you don’t want to be involved with. And if you don’t feel like you can handle getting rid of the guy, set the boundary and then ask for help. There are always guides, guardians, angels, etc willing to help you as long as it is allowed. Occasionally the lesson is for you to do it on your own, but it never hurts to ask.
Also, remember that you can do the energy work anywhere. You can be sitting at your desk and bouncing energy for a few minutes. You can bounce energy while driving, or before you go to bed. These exercises do not need to be done at one sitting. I think at this point most of us have to break it up in order to fit it in at all.