Please Help my friend she is certified PATHETIC?

My friend's boyfriend was in jail for 7 months.His ex-girl at the time was 3 months pregnant with his sons(which are born now TWINS) He spent all day at his baby's mother house.My friend changed her # because his baby mom used to call her phone.Well his baby mom has the new # and she called my friend stating that they had today while he was visiting the boys (and i believe so 100%) How did she get her new # (HIM) he had her cell phone all day today he and avoided her calls while she was at work at Macy's,He is sooooo using her she brought him Nike's for $160 and gave him money for spending...His baby mom called the new # today thinking that the phone belonged to him being as though he her called from it.She swore on her sons lives that they had today and he is using her for money I believe he had withher too because his babymom went too much into detail and he was stuck when she questioned him (i was there) anyway she changed her # again being as though the baby mom got this #.He is trying to play both sides!!!! I told her that... He is going over there tomororrow (his baby mom house to meet the probation officer he gave her the baby mom address) She is still giving him money and being used.He was in a realtionship with his baby mom for 4 years and he known my friend for 2 months before he went to jail.His baby mom is pretty and works on capitol hill (accomplished) He is using her like before and it is so obvious because she has low self esteem I can't lie the baby mom is more attractive than my friend and he is using my friend HELp he only wants her for her MONEY so he can look good for his baby mother who is ashamed of him to be honest is she dumb or what i feel bad for her