So some information may seem irrelevant but it helps me tell the story.

First the cast. I'm a cis male. My partner is AFAB non binary (MYP). My partner's ex is a trans woman (EXE) and her new partner is a trans man(XNP). MYP and EXE have 2 kids together SK1 and SK2.

So EXE and XNP met in a mental hospital and have had kind of a weird history so far. They broke up at one point but are back together.

XNP is only 19 to EXE 30 and XNP has been showing signs of attention seeking behavior. While MYP and EXE we're discussing SK2 having an upset stomach XNP jumped in out of the blue say their stomach was also upset. XNP claims also to have stomach cancer. EXE's own mother is a nurse that deals with cancer patients and had a father that went through chemo and she does not believe XNP has cancer due to a lack of a central line and still having all of their hair. On top of all this is XNP is now claiming to be pregnant with EXE's child. These are the most noticable things.

Now the name thing is just unusual and I would like other peoples opinion about it. XNP chose my first name as their new name. I normally would only be annoyed because I think too many people have my name to begin with but what makes MYP and me suspicious is that that is what the kids call me. So we are wondering if XNP picked this name so the kids will think of XNP of more as a parent. It is also unusual because the name I was introduced to XNP as was already gender affirming so a change didn't seem needed. Again I normally care what someone choose as a name but the circumstances of this situation seem odd.

Thank you for reading