I find nothing wrong with your intention of saying goodbye to the two.I would say you are just being a gentleman.The worst thing is to keep someone in suspense for a long time,actually its a sin.One thing you need to know is that most ladies once they have given their heart,saul & spirit to a gentleman like you,they do it 100% and they are likely to be hurt when things go haywire.
So far 3months is not a very long period and this is the right time for you to bid the 2 bye bye,fine they will be hurt but get healed after sometimes.And us xtians could put it like i feel that its not the will of God we continue any further .Whenever you bigin a r/ship,try not to end up creating enemies,make sure your ex blesses you in your next move.
.........................My 2cts
Jesus Said,'If you abide in Me,and My Words abide in you,you will ask what you desire,and it shsll be done for you' (Jhn 15:7)