Hi there Taren, my name is Gerardo, and I'm an Xbox player. I'll be happy to assist you with any questions or concerns you may have.
If you currently have Minecraft Bedrock Edition on your PC, purchasing the Minecraft Bedrock & Java Edition Bundle will additionally grant you Minecraft Java Edition. Nothing will happen to your Minecraft Bedrock Edition; don't worry. Unfortunately, it's not possible to buy Minecraft Java Edition separately; it's only sold in the bundle that includes both games.
Please keep in mind that in this public forum, we are just fellow players like you, trying to help other players with our best intentions.
I hope this helps and if you have further questions please let me know.
Kind regards,
Gerardo.