I'm going to go with listening to your creep-alarm and suggest discussing this with your dh once he is home. While your dh is gone, I would suggest not responding in any way to his offers or with a big old...NO Thank you!
Even if he is just a little off, there is no excuse for your being made to feel stalked or unsettled.
Don't be afraid to be a little rude.
Please, please don't ever be made to feel like you are not being kind by listening to your gut; there is a reason we have these internal alarms.