one of the earlier flowers opened up and just recently it looks like it is closing off it's fully yellow but it looks like it's going to dry up and die.

why is that?

lately it has been raining constantly in my area and my containers have holes in them but i mean is the excess water the reason or what is actually causing it to do this?

i can only think of 3 reasons why my plant is doing this.

1. white fly aphids recently been attacking this plant and i have tried removing them.

2. soap and water mixture i sprayed the plant with due to the aphids. it was too strong and burned some of my plants leaves.

3. excess water.

any ideas what is causing it to close up? it is just 1 flower but i mean thats 1 less tomato and im worried the others might do the very same thing