A guy told me he liked me and I told him I liked him too and that he was happy I told him how I felt about him. The 3 days later I found out he went with someone else, I’m so confused?

People oftentimes like more than one person. He wanted to let you know that he liked you. He was glad you liked also. It does not mean you want to date a person because you like them. Reflex back on the conversation, was dating between the two of you discussed during the conversation. If it was, this lets you know he can not be trusted. If not, it may have been for the future, just in case things do not work out in the current relationship. Relationships can be tricky, tread with caution.

Situations like that can be really hard to get through, but a lot of people are like that sometimes, especially young people. The guy probably didn't know what he wanted yet and was a bit confused. If that happened, he probably doesn't deserve you because you deserve someone that truly cares about you, so I reckon just let him go. When you find somebody who actually likes you and cares about you and wants to be with you, you will be so happy and grateful that you didn't date some random guy who doesn't actually have strong feelings for you.

Of course that's confusing, your paths appeared to converge and be aligned on the same trajectory. Then all of a sudden it pivoted without a warning, so naturally that'd be disorienting. From what you laid out, I'm also confused as to what you'd like to focus on; would you like guidance on how to feel secure in yourself again, would you like to find out what happened, would you like to brainstorm ways to move on? So perhaps a good first step is to identify what your goal is as you move forward. Focusing on the confusion, however, I'd like to add that it's not only normal to feel confused in such a scenario, but also expected to feel other emotions as well. Remember that you're human and being in touch with yourself would also help get you through this!