Does she like me?

I will keep it short I (17M) currently going for JEE coaching and I made a friend she is in NEET and we became friends a month back ,today while commuting I got late and my phone battery ran out it took me half an hour to reach the destination (metro) and there she was she waited 40 mins for me and I was flabbergasted as I thought she would have gone and just went there and apologized but she then told me something in her native language(she is from NE) and said no problem looking slightly angry
Everyone I am a complete noob in this ,girls pls do guide me if you could

Thanks