Help! My husband picked out this Begonia for me to rescue and I honestly don’t know what to do with it. I got rid of all the old dirt and repotted since there were lil critters in it before. Since then, I’ll touch a leaf and it immediately falls off for many of the stems. I just don’t know this plant very well and just need to know if the red tinged leaves are normal, if I should just propagate it, I don’t know. Kinda lost about it. I don’t know if it’s sick or just angry at me for repotting.