' ... Don't act like an overly attached girlfriend...'
I have never had an overly attached girlfriend. Must be hard to deal with. I didn't even have an overly attached wife. When things got a little rough she showed me the front door. [ That's why I recommend having an escape plan. Sleeping in a Toyota Corolla for a month gives you pain in places other people don't even have places.]
' ... I smiled and said no not right now, and they said to just let them know when I need some encouragement. They kinda hung their heads a little..'.
Maybe you should have said, ' From the way you are hanging your heads you look like the ones that need some encouragement. Give me a call some time. Maybe I can help. Right now I have more important things to do. HAVE A GREAT DAY!'