Kristen Stewart Heartbreak, 'Fears' Robert Pattnson & FKA Twigs Engagement Moving Too Fast: Will Ex-Girlfriend Attend Wedding With Taylor Lautner?

Initially, Kristen Stewart was "livid" with ex-boyfriend Robert Pattinson after learning that he suddenly proposed to new girlfriend FKA Twigs after only six months of dating. But after cooling down, the "Twilight" sweetheart is now just concerned for Pattinson's well-being - she doesn't want him to experience such gut-wrenching heartbreak once again.

An alleged insider tells the seedy gossip webloid Life & Style:

"She was hurt at first, but now she's just worried that Rob and FKA are moving too fast," (via HollywoodLife.com).

Do MstarsNews readers agree - perhaps R-Patz and Twigs make a cute couple, but is it really time to already jump into marriage?

Well, the "Remember Me" heartthrob isn't slowing down anytime soon! Rumors suggest that the 28-year-old British actor is already planning the wedding guest list. Pop sensation Katy Perry will likely attend - but what about 25-year-old Stewart?

Apparently Twigs finds the situation a little awkward, but she'll support her feature hubby's ultimate decision:

"She's not against the idea of inviting Kristen," another source tells HollywoodLife. "She just thinks it's a little strange he would want her there for their special day after she hurt him so badly." 

So maybe everything will work-out in the end!

Meanwhile, Stewart continues leaning on her friends during this tough transition time, including longtime BFF Alicia Cargile. Another supportive companion - former co-star, Taylor Lautner! As originally reported:

"[Taylor] already reached out to her to offer support and to remind her that it's out of her control and not to beat herself up about the past... He's been there with her throughout all the ups and downs with Rob and totally understands how the news is playing with her head... He's always been like her rock and visa versa" (via HollywoodLife). 

Would it be a good idea if the two pals celebrated Pattinson's wedding bliss together?