I agree with Hassan, but I couldn't help and laugh about her view that Islam is from Satan and she's on a mission to save the deceived Muslims in the name of Christ. I find it amusing that she grew up in a lie and left it to embrace her new "truth", which surely can't be just another set of lies invented by Satan.
If you believe in a mythical being like Satan who carefully crafts fake revelations to inspire aspiring prophets just so he can deceive people, it's needless to say that this view leaves you very vulnerable to criticisms of the particular faith you yourself hold. Who's to say that this invisible confidence trickster hasn't trapped you inside a web of lies? What kind of god would allow that bastard to roam freely anyway? Certainly not a merciful one.
This girl may think she's very sure that Christ is the Truth, and not from Satan, and she probably thinks she can suppport her view with verses from the Bible. Muslims of course won't accept that, and they will have their reasons to think Islam is not from Satan.
The believers will quote scripture to disprove other scripture. It's similar to listening to nerds debate about nitty-gritty details of their favourite Fantasy or Science Fiction Sagas.
I think her conversion has kind of boosted her ego and self-confidence and she wishes nothing more than to convert her relatives in order to attain salvation through faith in Christ. Would be interesting to know what they think about her idea that Islam is from Satan. Don't know how that can contribute to an understanding relationship.
I seriously don't understand why people want to be part of a religion which doesn't acknowledge different paths to salvation. It often has to be the God who acts like a stupid bully who kicks you in your stomach if you don't subordinate yourself to him and don't pay respect and homage.
I remember having an emotional conversation with God a few days ago. It went something like this:
Me: Dear God. Don't be shy. Give me a sign.
God: Very well, you shall hear my mighty voice!
Me:

. So what do you want from us oh Eternal One?
God: Hand over your ass to me or suffer dire consequences! It's your choice. I didn't give you free will for nothing.
Me:

God: I'm dead serious!
Me:

God: Yeah, you can laugh as much you want, now. Let's see how you'll do in the fiery pits of Hell.
Me:

God: Don't be speechless, I haven't even detailed the horrors of that place yet. You know how many dictators have created concentration camps on your planet in order to eradicate dissidents, races and minority groups?
Me:

God: Those places are amusement parks when compared to the agonizing and hopeless homes I have prepared for you to dwell in. You won't grasp it with your feeble mind until you witness it yourself.
Me:

God: Oh my dear creature, don't cry. I could shower you with so many blessings. I'm known as the Merciful and Bountiful almost everywhere.
Me:

God: No, I'm not kidding you. You could be so happy and lucky, if only... if only you accepted me in your miserable heart!

Me:

God: Awwrrr

. There you again with your condescending attitude! You should be ashamed of yourself!
Me:

God: I have given you a sign. I'm talking to you right now, for heaven's sake, will ye believe already!?
Me:

God: Grr. You arrogant little piece of scum!

Me:

God: That's the limit! You shall taste my justice and my wrath in the life to come. How awful a fate!
Me:

He sounded so... is angry even the right word for this? Mad as Fucking Hell!