Try not to feel ashamed. likely you put yourself out there, thought your behavior would be matched, but instead you made yourself vulnerable and it didn't pay off. so, you know that meow. move on and likely you're feelings for him will lessen over time. or you might replace your time that you spent together doing something more productive and healthier for yourself. There may be another time to rekindle whatever sparks you had between each other. be ready for that but try not to bank on it because that time may never come. it's really a bummer when you trust people who you've spent so much of your time with, but when you need them to return a level of support, whether that be financial, emotional or whatever, all they know how to give is tough love. no thank you. move on