Step sons mother driving me bonkers

My SO has a 7 year old son even though we've been together ten years we were separated and she got pregnant anyways I am supportive of him seeing his son! I've actually encouraged it and even forced him to the hospital because I knew he wanted to go but didn't know how to "ask" me or bring it up! Anyways his mom has always wanted a girl she has three boys (with three dad's) anyways this was her last one and she says to me when I ask about toys for him that she is switching his toys to "girl" toys and we should buy him monster high dolls. She's one of those it doesn't matter gender toys now but than she made him take the dolls for show and tell and now all the kids are making fun of him and he doesn't like it. She already bought him a few dolls and he is playing with them but I feel like she's "forcing" him to make a statement kind of thing. I am ok with letting boys play with girls toys and vise versa if they ask but not forcig them I mean kids are mean enough. And even if he wanted to play with girl toys you don't make him take them to school. 
She's also trying to make him get on meds and says he has so much wrong with him which no k e else can see (including several doctors , psychologists every doctor possible she's taken him to) for 3 years and now she found one that would give her child a prescription for Ritalin. Anyways no one else his local doctors teachers and other family members see anything wrong with him nd feel the meds are making him miserable and depressed now! Oh and I forgot to mention she's still in love with my boyfriend she's loved him for many years and is ways trying to make him go see her and my daughter is about 5 mths older than her son and obviously he has a better relationship with his daughter because we live together and have since she was born. 
But my question is do you think she's doing all this toget his attention? Because it's all affecting the boy and it's not fair to him. Why should he be on meds and forced to play with girl toys to get his dad's attention. And she knows these kind of things get his attention. The child has never asked to play with girl toys and why should we buy him all girl toys for Christmas and my boyfriend
Refused period even if he asked he wouldn't. But it just seems like she's trying hard to get his attention. Maybe it's just me being paranoid But no one thinks he should be on meds except the one doctor she got them from and traveled 2hrs for . Not his teachers grandparents or local doctors I ru don't know what's going on