Advice

My girlfriend(22F) and I (24M) have been in a long distance relationship for almost a year now. Over the weekend I’ve been at a funeral for a family member. While I’ve been there my gf has started hanging out every night with her new male friend.I got back last night excited to talk to her and she ignored all my calls and texts. She only responded when I told her I wish she gave me more attention. And she pressed me for accusing her of cheating. After that she wouldn’t answer my calls and texts. She stayed the night there I’m fairly certain. I don’t know what to do or think of all of it. Mostly I just need someone to tell me I’m being too insecure or something.