Disgusted

So my ex girlfriend started talking to another female last year while we were still together I found out and confronted her she said she wouldn't do it again but that was a lie because for 8 months I kept finding out they were still talking so last month the girl added my ex on fb and they were talking again I told my ex to block her and i blocked her so the girl was in a relationship and she will say she's happy in it so last week I broke up with my girlfriend and like a couple days later the girl breaks up with her gf I know because I added her on fb to be nosey and see if my ex was talking to her still I also added her on ig now my ex is blocked so she can't see that I follow her but I noticed my ex liking her naked pictures and that pissed me off...(story of the girl) she's basically a hoe a Thot whatever you want to call it she is not educated she didn't have a job she just got one or can't keep one she's the type of girl that crave attention from anyone she get out of a relationship and get into another basically the next day she use people for a roof over her and her son head like and I feel my ex like that