I get where your coming from. I've been ghosted by someone very close to me for over 30 years. Only in a different way. She turned on me like I was a total stranger WITHOUT ANY EXPLANATION ! Just stopped caring about me , wouldn't let me touch her. Said vile things to me. Wanted me to leave. She ghosted our entire relationship, while still being with me until I was able to leave. Ignored me, put me down, etc.....it was like living with your worst enemy. Hell for sure.
It must be nice to not have any feelings. Watching me suffer from physical and emotional pain and not being able to do a damn thing about it. All I said was WHY ? It was responded to with a very loud silence ! Never gave a reason. Never apologized. She used passive aggressiveness, which like you said , is COWARDICE. After being alone for awhile I begged her to take me back , out of loneliness. But it will never be right. There's always that underlying current of anger and distrust. There is no real communication or intimacy. It's all fake.
I feel like the fool times 10. Maybe this person not answering you is the best thing that could have ever happened to you.