I Need to Vent

I really need to vent to someone I'm irritated. My roomie is a nice girl but I feel like she's moving way too fast with her Internet BF/fiancé. This is her second engagement. The last one was rushed too. They live in different states and have only seen eachother in person a hand full of times for less than 2yrs. I feel like she's a bit young to be worrying about a wedding. I know most people would say 22 isn't too young but I feel it is with their situation. I wish I could be more supportive but it's hard.