He seems distant. Rarely texts or calls anymore. what should I do?

I have been with my boyfriend almost two years. Our first 19 months were great, we had no problems. He's always been really sweet. A few months back I had problems with trust etc.(nothing he done, just a problem I had) but now I trust him 100%, and I am certain I want to be with him. The problem is even though he says he loves me and wants to be with me, I'm not feeling that because he only texts a few times a day, sounds petty I know but he's never been like that. Even when working he'd still text me. I'd like a guys advice as whether I should be worried. Be honest. Thanks.