<human>: Can you succinctly summarize the text in 1-3 sentences?

Hey guys,

So for the last 2.5 years I've been in a lovely relationship with a girl my age, let's call her Amy. Highschool sweethearts, similar interests, lost virginities to each other and I really truly loved her. 

Amy and I found out about 3 months ago that she was moving to college in the U.S. (I'm in Europe), and about 3 weeks ago we broke up mutually and in tears. 

A week later, drunk, a girl, let's call her Sarah, who I've been crushing on for the last few months (obviously never intending anything, really truly loved my Ex-SO) and I hooked up and drunkenly admitted we'd both been interested for a while. Sarah is very very different to Amy, far less in common with me, but I'm also insanely attracted to her personality. I should stress we're also really good friends and get on really well, but more often party and drink than I would have with Amy. A few days ago we saw each other, and again hooked up.

Amy and I agreed that its imperative we don't really see each other to have a 'cut-off' from the relationship, but we still talk. Because its a rough time for me (other reasons outside of this), she's really the only person who can give me a lot of the emotional support I need (Sarah and I are nowhere close to that point yet). I could never, ever tell Amy about Sarah and the inkling "kinda-sorta maybe this could become a' relationship we have, because I would hate hurting her. 

Obviously a few weeks is too short, and I shouldn't have made a move with Sarah, but should I leave it completely? Or just move really slowly? Any and all advice appreciated.
<bot>: Broke up with GF of 2.5 years, hooked up with another close friend after only 3 weeks and a relationship is starting to form, what do?