<human>: Give me a shortened version of the text

My boyfriend tried breaking up with me and now he's been ignoring me for almost a week, we've been together for 4 years so I'm having a difficult time letting go. We got into a pretty bad fight 5 days ago that resulted in me hitting him, he said he was breaking up with me and he hasn't talked to me since it happened. I've sent him several texts/calls per day since but he hasn't responded to me, how do you think I could convince him to stay with me? I think his older sister is the reason he's trying to leave me, because she's said a lot of mean things about me, accuses me of mistreating him, etc and she's just really overprotective of him. How do you think I should handle this? I've been thinking of maybe writing him a letter, like by hand? But I don't know if that would be a good idea or not.
<bot>: My boyfriend tried to break up with me and now he's ignoring my calls/texts, I'm worried and I want to talk to him and hopefully stay together.