Brave. I think you need to work on you. I'm trying to find a way of writing what I want to say that won't upset you or sound rude. From your posts you sound a lovely girl who is sweet and kind and has a lovely family and friends. However when it comes to the men in your life it sounds like when you like someone you like them a lot and quickly and there's nothing wrong with that but when they don't act in a way you like, you read too much into it and then behave in a way that I would best say looks a bit "needy". We all act a bit needy at times but it seems peoples responses to it , upsets you more. I feel you need to look at why when you like someone you start to feel insecure? Once you find that out, you will break this pattern and no longer be the one chasing but instead have them chasing you.
You have no reason to lie low as you put it. He does sound a bit rude to not respond but maybe he knows you want more and doesn't want to hurt you. Maybe theres a different reason. No contact is for you to work on you , not a tool to make someone miss you. That is sometimes the outcome but
shouldn't be the motivation.
You speak sometimes as though you'll be lucky to have these men but in fact theyll be the ones who will be lucky to have you. Once you realise this that anyone would be extremely lucky to have you and believe it - then it will happen that others will realise it too.
You've got a lot going for you, stand tall and let people see you deserve all the good things and people coming your way.