Is she interested?

There's this girl in class that i've known for 4 years roughly and we started talking more about half a year or so, a few days ago I overheard her complimenting my butt, and I texted her after it but I don't know the conversation wasn't really there (then again I suck at convos). And a few monts prior when I asked her to prom she said that she was really glad that I did that. I also have a really bad habit of asking girls out from class, and I really don't want to make it awkward with another girl, also (and I fucking hate it for the record) my ex is in the same class. There are only 2 months left from school, should I ask her out now or wait?

Is she interested?
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