If you have deep feelings for your significant other and you have expressed it to them in more ways then one and you received no feedback...when is it time to move on?
SCENARIO
I'm currently "dating" someone who I love and care for deeply

. In the beginning of our relationship we both decided that we didn't want to rush back into a relationship and that we would date each other exclusively. However, since then I have expressed my feelings to him on more than one occasion but have gotten nothing in return.

We used to talk on the phone everyday, walked to class together, talked throughout the day, and did small romantic things. NOW, we barely talk. He doesn't return phone calls or any of that. I refuse to stand idle too long waiting for him to come around when I have given up a lot of opportunities (when i say opportunities...I'm referring to male friends who I used to date and go out with) to be with him. He is the person that I could see myself marrying at some point but the way things are looking today...I just don't know. It is frustrating

because opposed to telling me how he feels he won't address the situation.
So my question is...when is it time to move on?