Advice Needed

I've been hooking up with this boy for a good 3 weeks now, and we've gone pretty far already. We're both teenagers and want to experiment, so we've done everything but sex and anal. However I'm really bad at communicating and he's very down to earth and open but I for some reason can't be honest about what I want. We established that it's okay for us to hook up with other people because "he doesn't care" as long as we're still hooking up with each other. Sex has come up lately and I frustrated him because I didn't have a constructed statemement to back up my reasoning for why losing my virginity is a big deal. And although he doesnt understand/agree he respects it. I don't know what to do, I hate being alone and we have many good moments together but I feel as if this isn't meant to be, but I'm kinda into him and I really don't wanna be alone again.