ASTRA NPC - VERSION 1.0
As I didn't change the map she's residing in the saloon storage room, it's a good place to start looking for her.
Screenshots contain hints for where you can find her heart events.

:: REQUIREMENTS ::
Keep these up to date and you'll be golden.
• SMAPI - https://www.nexusmods.com/stardewvalley/mods/2400
• Content Patcher - https://www.nexusmods.com/stardewvalley/mods/1915
• TMXL Map Toolkit - https://www.nexusmods.com/stardewvalley/mods/1820
• Custom NPC Fixes - https://www.nexusmods.com/stardewvalley/mods/3849

:: FEATURES ::
• Fully functional new datable NPC
• Original sprites and portraits
• Marriage with unique spouse room
• 5 Heart events
• Festival compatability

:: KNOWN ISSUES ::
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:: CREDITS ::
♦ The Stardew Valley Discord for their help whenever needed.
♦ DCTV for creating the character.