While there are various "free" or ".rar" versions circulating online, these often lack the critical that make the font look hand-drawn. To get the intended effect and support the artist, the full version is available directly from Letterhead Fonts .
If your budget is truly zero, no free font perfectly replicates Unlovable’s distressed charm, but these alternatives capture a similar "unlovable" rough script feel: lhf unlovable fontrar full