Boyfriend

We been together for 4 months now. But I think he is obsess with his ex. Because, he block me from his Instagram account and Snapchat, but I have a fake account where I can see everything. He would put her initials in his bio on Instagram and Facebook. Saying stuff like “lying bitch, Sometimes he put a heart, and right now it is a angry face”. But recently he made a song about her and I don’t know if I should be worried and stop talking to him. The song titled “ can’t let go”.