my ex

i still love my ex and would definitely get back together with him if he asked. it's been 7 months and every time he talks to me, he makes me cry because i know he is just using me, even though i love him and would do almost anything for him. about a month ago he texted me and after i told him i didn't want him talking to me, as i would just get hurt he told me "i'm not going to leave this time." obviously that was a lie and he left but i'm still heartbroken and don't know what to do, any help?