<human>: Can you summarize the given text in a few sentences?

hi
i have been dating my girlfriend for around 5 months now, and we have been very happy. we are in a long distance relationship.

i trust my girlfriend completely, she is not at all the kind of person that would cheat.

she is best friends with her ex. they talk a lot and often do stuff online together (theirs was also a long distance thing).

this worries me greatly. i dont know if she still has feelings for him. she says she wants to be with me, but i dont know if she means it. she has known him a lot longer than me, 

sometimes it seems like it is easier for him to spend time with her than it is for me to. the first thing i do when i wake up is message her, the first thing i do when she gets on is talk to her, she takes priority over everyone.

with her its like its between me and him. she rarely initiates a call with me, and a lot of the time just goes straight into calls with him.

is it unreasonable of me to ask her if she still has feelings for him?
<bot>: gf is friends with her ex, i dont know if it is unfair of me to ask her whether or not she still has any sorts of feelings for him.