My ex just randomly says I love you to me?

Ok so me and my ex broke up I broke up with him because he didn't really text me or spent time together and we been together for 5 months and only seen each other twice once it was at a mall walking around talking the other time was at a high school parking lot having sex (regret) because every time we made plans to meet up again (because he works and so do i) he canceled last minute to the point I don't believe him when he made plans then I said what about fireworks I really wanna see and he shut down saying I don't wanna but then When I try to talk to him about seeing each other he tells me that I need to make cleanse just as well as he did but since he shouldn't me out the 1st time I'm afraid he's going to do it again again other reason we broke up then he texted me I love you afterwards like any tips or advice? ANYTHING
My ex just randomly says I love you to me?
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