I know the situation is very painful..especially you love this guy and have an intimate relationship. If he ended the relationship because you are jealous.Its not an excuse..seems he is just enjoying having a communication with his Ex.now.And insensitive to your feelings.If he really loves you and wants to grow old with you..he should stay away from temptations ( sweet talk to ex..etc... ) and focus what plans you have now. Its hard to judge.. but i think you have to step down and think of yourself and your family as well. If family is affected it's another story. If he really loves you he will not do things that makes you hurt and jealous. And being far to each other is the main problem too. It is very tough.So it should be you and him saving the relationship. Are you in Phils now and what place? Good Luck to you and hope you will overcome all this painful situation.
God Bless.