What does my ex want?

My ex and I broke up a year ago, him ending it. I did not want things to end but I wasn't in the best place. After 2 months we both started grad school (at the same school) and we made plans to catch up and tried being just friends but being just friends wasn't working, things got confusing to where we stopped talking. I recently opened an online dating account & he found me and viewed my profile. He then messaged me asking how am I and he hopes I'm doing well! I asked him how his program was going and he hasn't replied... what does he want?
What does my ex want?
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