Tomato plant is huge with a lot of blossoms but no tomatoes. The tomato plant next to it is about the same size, and it has a few tomatoes on in. What's wrong?
This could be due to many things like fertilizer, weather, or (I think in your situation) poor pollination. This article should help: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossoms-no-tomatoes.htm