You'll need a time period in which to decide whether these non-monogamous inclinations are just a phase you're going through, or whether they're a vital part of you, and necessary for your long-term happiness. You need to decide how long of a time period you need to make that determination.
If you feel that you have to suppress your feelings, then maybe you're already formulating the answer in your own mind. But definitely, before you decide what to do, you must decide what you really want (and need) in life.
Love means never having to say, "Put down that meat cleaver!"