I know exactly how you feel, this was the situation w me and my gf :). You just do what your heart says is right, have faith!
Song recs;
* Second Best - Laufey (any Laufey Song really)
* She won't go away - Faye Webster
* Good at breaking Hearts - Jungle
* Self Control - Frank Ocean
* Sienna - The Maria's
* I know you - Faye Webster
* How to get out of love - Alice Phoebe Lou