Leave someone at the altar verb phrase
To abandon someone you was going to marry at the wedding ceremony just before it is supposed to happen
Annie must be very heartbroken right now. Her fiancé left her at the altar.
I can't believe that Max left Jane at the altar.
In the hope that something will become better in the future despite bad or failed experience in the past
To seduce and make someone think you're in love with them (the fact is that you're not) then leave them
To flee or run
I'm leaving
1. Used when someone or something moves very quickly.
2. Used when one starts moving or leaves promptly.
The verb "leave" should be conjugated according to its tense.