Bright, I do find it odd that your friends haven't contacted you about the items you sent to them. Maybe your h didn't give them the stuff? I think your h is so focused on work these days that he's completely forgotten about the cottage cheese. If you are still doing your lab testing, the next time you communicate w/him, I would ask him if the cottage cheese was the type he liked. Maybe he'll say something about it.
If you are comfortable in doing the errands, etc., for him, then continue to do them...but at some point, you'll need to make a decision as to whether to continue to do them or not. Sometimes I get the impression that you feel a bit of anger towards him asking you to do these things, i.e., taking advantage of your good nature. Bright, none of us can tell you what to do...but if the anger bubbles up when you have to do these things, then it's time to change things up a bit. You'll know when to do it.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.