Still in love with my ex 😴😖💔

So it's been a whole month since my ex and I broke up. Well I wasn't ready to let go but he did block me on all social media accounts with no explanation. We were together for 3 months and I've never had a relationship that lasted that long and I caught real feelings for him. So occasionally I do get really really sad about it and his new girlfriend just thinks she's all that even commenting on the guy I attempt to build something with posts. How do I refrain from just snatching the wig off that 6 feet tall giant bitch? Should I just do it? The crazy part is I feel the urge to do it because she was talking to my ex while we were still together and now it's just him and her and she thinks she's all that. Currently my ex Is in a 4-6 month program facility and the funny part is she has yet to at least be around him or hangout with him and they live in the same city. But all on his account saying she misses him. She's so ignorant, omg! That wasn't necessary to mention but I'm just saying if that was me I would have been found a way to visit him even though I have no car. Basically the point is, Till this day even though he hates me and don't want anything to do with me I'd still do anything for him. Am I too soft? Should I get over this feeling?