It doesn’t sound to me as if your guy is being trustworthy. How can you really feel love for him if you can’t trust him? Trust is the foundation of a relationship. Without it, you can’t really have a good relationship.
It also sounds to me as if he is playing games with you. I question his reasoning for having you only as a weekend girlfriend. It sounds to me as if he might have somebody else on the side. I had a guy like that once, and I broke off with him. I didn’t want to be a part-time girlfriend.
What to do? I’d say talk with him to find out what’s going on. Otherwise, this will continue to drive you crazy. Approach him calmly, and with a matter-of-fact tone of voice so as not to put him on the defensive, and be prepared to ask him the questions that are bothering you. If he can’t be straightforward, then you may continue to have problems with him that may lead to breakup. Lack of good communications often lead to breakups because of misunderstandings. Get him talking, and do it face-to-face, not through texting.