My friend used an Xbox 360 for Minecraft and I use mobile but since were both bedrock (haters will say it’s not) I kinda thought we could play together:/
You guys in fact, are not both on the Bedrock edition of Minecraft. Your friend is on the minecraft-legacy-console edition of Minecraft, while you are on the minecraft-bedrock-edition. You can see the difference by going on the main screens. Minecraft Legacy Console edition is discontinued, therefore you cannot play with your friend.
A simple search for "Can Xbox and Mobile play Minecraft together" on the internet will tell you that Minecraft, indeed, is cross-platform.
All you need to do is invite a friend to your world by selecting the option "Find Cross-Platform Friends" and then enter their Minecraft ID to add them as a friend.
Please do more research before asking a question.