Please help!! Don't know how to feel about this situation?

[Tina]

when a reationship is taken from u it is hard to let it go. he is tellin u he thinks of her then she is on his mind.. its bad cause he shouldnt b doun tha but u cant control him... but hink of urslef.. wha will happen if one day she comes out of no where... this happened to me and I wss with my fiance for five years when it happened... his ex came out of no where n his whole life changed he treating me differently everything it broke my heart.. he went bac to her till she told him she did npt want him then he tried to come to me... I closed the door n walked away for good. it was the hardest thing I ever did... but we r too good for that