Feeling worthless after cheated on

So I left my ex after being with him for five months (yes I know short relationship) but in the beginning he was cheating on me with our roommate and 20+ women on Snapchat and then another woman out of town.

I’m feeling really down about myself because I now realize that I shouldn’t have forgave him and that he never cared about me.

He just wanted someone to clean his house and wash his clothes.

He hasn’t even contacted me since we broke up and immediately got back on dating sites after I moved out.

I just feel so depressed and worthless. When will someone care? :(

I feel really depressed but got up today, straightened my hair & did my makeup and felt semi better. But still feel very sad. Idk.