Your worth comes from within you as an individual, not from relationships

You really need to put some thought into that. It's impossible to have a healthy relationship while feeling like you are lesser. It's a great way to end up clinging to someone you aren't compatible with or even staying with an abuser.

Do you frequently devalue yourself? Do you often think you aren't worthy?

Do you think her intention was to use you for sex? Your OP reads as of that's what you believe.

That happens. It doesn't mean there is anything wrong with you or that she used you. Learn from this and move on. Think about what you really want and be upfront about it with the next person. That's all any of us can do.

You weren't honest with her (yourself?) about what you were looking for.

Some people just aren't into social media. Your friends need to get out more.

Congratulations!