Gaining weight from recovering from anorexia ?

Trying to get over an eating disorder,(i thought i already had but it creeped up on me again) but im so scared that i will put the weight back on if i start eating normally again. Its like i have to choose between keeping the disorder or gaining weight. The bad thing is that i want to choose the first option, but i know how bad it is, im just worried that if i gained it it would make my depression really bad, and everything would be back to square one again. I think i have what it takes to get over the disorder, but its just me worrying about the outcome of it all...will i really put on weight from getting over an eating disorder?