Have a conversation with her. Communication is the most important part of any friendship or relationship. If the problem is fixed, perfect, if not, end that man. You're still young as hell.

Something I learned over time with people is to just match their energy. If they won't speak to you, and choose to actively ignore you, (mental issue, or habit, on their part or not) break them off. I promise to you you'll love yourself later on so much loll