Should I answer his text?

I was going on dates with this guy for a month we really got along and he told me he liked me. We hung out a bunch and he was leaving on a trip and before he left we had sex. While he was away he barely reached out and he said that he would call me and send me pictures and he did none of that. I texted him while he was away saying I thought it was crazy he didn’t reach out once considering I had sex with him and I’m not the type of girl that has sex with a lot of guys and he knows that. He apologized and told me he liked me and really liked hanging with me but still was not putting effort into communicating with me. I sent a text that ended the convo and he didn’t text me for a week. I called him today and he didn’t answer about 7 hours later at 12 at night he texted me and wrote “Hey sorry just saw you called I’ve had the busiest day sorry I missed it I did like a 30 person dinner “ should I answer his text? I feel like he could have called me back if he cared and he knows why I’m reaching out but didn’t mention anything. Is it contradicting if I don’t answer because I’m the one who called?
Should I answer his text?
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