My boyfriend invited his new female "friend" to our church. But I think she had ulterior motives?

[Elle]

No way this girl is trying to get saved. I sent her a friend request on Facebook to see what her page is looking like and she posts the most inappropriate statuses known to mankind. I can't believe my boyfriend is oblivious to her real self. He thinks she's some great psrson. Is he really that gullible to believe she really wants to be just friends
He's only know her for two weeks. He said he's only seen her in real life once and they mostly talk on the Facebook. But he didn't mention they talk on the phone late at night. I'm sooo heated
He accidentally left his Facebook page open one night and I saw where my boyfriend and her were messaging back and forth
She was telling him " omg just heard a creepy noise in my house need you to come save me.. " and he was like " only if I can get a back massage and breakfast" and she was like " your girlfriend wouldn't be too fond of that haha" and he was like " I'm just kidding" and she was like " you were dead serious"
And then in another message she was telling him " I'm cuddling with Bob" and he was like " you need to leave Bob and get with a real deal john " and she was like " Bob can't break my heart" and he was like " but he can't fully satisfy you either.. Can't hold you or surprise you can't.. Lemme stop"
In another message I read " did you tell your girlfriend about the late night conversations on the phone" and he was like " no.. I just told her we talk on Facebook .. But the late night conversations on the phone have to stop I'm sorry if I disrespected you I was taught better than that. I think we should just stick with Facebook messages" and he also said " I just think you're awesome and I've never had a female friend like this while I've been in a relationship with her"

And today he told me that he invited her to church . Are you kidding me ?????!! Ishes just finding new ways to get close to him

[me]

He's obviously into her. You need to put your foot down or he's not going to stop. It'd be one thing if they were friends before, but he didn't befriend her until after you two were dating. I would be like "You're obviously interested in that chick and I can tell she has ulterior motives. I don't care what you say, it's obviously true. You can either stop hanging out with and talking to her or find a new girlfriend, period"

Do NOT put up with any crap. I'm not sure she's the one with the dirty motives, it sounds like in this case it's your boyfriend....

[Ole]

Looks like your bf is interested.

[Emilee]

Yeah, I'd put your foot down for sure and put a stop to this and talk to him...you have to have some control...this happened to me, I thought one of my bf's female "friends" was trying to seduce him while he just thought she was a great person, and I was trying to talk some sense into him...in the end, it turned out I was right...as long as you're not just jealous, I'd trust your intuition, because it's normally right, and I don't trust her either...she doesn't sound like a very great person and I would confront your bf, he has his part too...if he isn't telling you about these "late-night" phone convos he clearly has something to hide...