Pretty common, but that won’t make you feel better.
Your twin flame is your mirror. Their behaviour reflects something to you about your own inner world. When they block you, it’s worth asking - where have you been blocking yourself? Where are you numbing out to your own feelings, avoiding parts of yourself that need attention? Have you been abandoning your own needs in ways you haven’t yet fully looked at yourself?
Twin flames mirror each other’s healing blocks and fears through their 3D behaviour, and that forces both of you to confront subconscious stuff around self-love and abandonment.
Treating this just like you would a normal relationship will keep you stuck even longer.
The runner is usually the less spiritually aware twin. They feel the same intensity you do, but they have zero framework for making sense of it - why they feel so pulled toward someone, why it won’t just go away. That scares them. So blocking becomes their attempt at using normal relationship logic. Cut someone off, move on. Except this isn’t a normal connection, and a social media block doesn’t actually sever anything real between you two.
It will pass.
The blocking is temporary. Your connection isn’t something that can be undone by a button on Instagram. Use this time. Do the inner work, sit with what’s coming up.