Everybody knows what Tindr is. That's hogwash. Speaking from personal experience, it is very, very difficult for a man to successfully date two women at the same time. It's just too much, as you are sadly learning. If I were in your situation, I would insist that he cut ties with Kelly. You deserve his full attention, especially with this pregnancy. If he doesn't get that, like, intuitively, then I, personally, would say he doesn't deserve you.