<human>: Can you condense the text into three sentences or less?

I am getting these growing feelings for a friend of mine but her past with guys is putting me off. Over the past few weeks we've been getting closer to each other. She has been hanging out with my group of friends more after I have been inviting her out. We talk in the group and privately just about normal stuff and I think we get along well. 

The only problem I have is I am not looking for a fwb any more and wanting to find a decent relationship however she is recently out of a long relationship and sleeping around. The other problem I have is she has slept with a quite a few of my close friends and has a reputation which is a bit off putting for me.

Finally after getting closer to each other and my interest in her growing to the point where I'm confident enough to make a move it is just happens to be that i leave the country for a month for South America.

What I am asking is should I maybe message her through social media or skype explaining what I think or wait until I return if the feelings are still there?. Also i want to know if anybody has dated someone with a reputation of sleeping about and how/did it affect the relationship?.
<bot>: Feelings for friend are growing. Going away to work for 4 weeks in South America. Not sure what I should do, Need advice.