I guess it's impossible to judge fully as to what someones intentions are, especially as we're sitting here behind a screen and only have limited information. However based on your situation you did the right thing and effectively got the nod from the boyfriend to (not pursue him as a lover) but rather to befriend him. As I honestly do believe that people can have platonic type relationships yet still be madly head over heels for someone, generally that's called life, and just because someone doesn't like you back, doesn't mean you should cut ties with them altogether right?
http://cinemaprobe.com/wp-content/up...-break-1-1.jpg
100% agree with this. Developing feelings and acting upon them are 2 different things and I wouldn't call anyone a cheater for hanging out with someone who you potentially like, but I do believe that if you like someone and fear it may lead into something else then I think you need to question your relationship with the other person as it's clearly not as strong as you thought.
Happy to hear you've got a happy ending to your story Samantha! :)