Am I a bad girlfriend?

Nicole
So me and my boyfriend have been together for almost 8 months and have been sexually active for about 4 of those months. We have never had complete unprotected sex but twice he has I put it in and thrusted a few times and then stopped. Well I have mild anxiety and so immediate I just assumed I was pregnant. I told him about hose time and took a test each time. This last time he decided that he no longer wants to be intimate in anytime of way. I was honestly kind of offended because he took my virginity and because he wanted it bad enough to not use a condom that he wants to just stop. Am I being a bad girlfriend for still wanting sex so badly and being offended that he won't have sex with me? He didn't tell me the reason for about a week and it made me feel as though he didn't see me has attractive in that way. I've tried to tell him over and over that as long as we are protected that we will be okay. Am I being a bad girlfriend?