<human>: Can you provide a brief rundown of the text in within 3 sentences?

Length of relationship: 4 years

We're currently long distance (been separate for about 3 months, 1 month to go). My SO has been spending a lot of time with a new friend she met. He has a GF and seems pretty committed to her. But I know that my SO is attracted to this guy (she told me this). I know she loves me and that she respects our relationship and his relationship with his SO, however it does bother me that she is spending a lot of time with him. I guess I'm afraid that them spending a lot of time together will lead to the formation of an emotional attachment (Can two people who are attracted to each other ever just remain friends?)

The thing is there's nothing I can do about it. I listen to her talk about him, let her go hang out with him and act completely normal about it because I know if I request that she doesn't spend time with him one of two things will happen:

1) She will hang out with him anyway (I have no way of knowing what she does).

2) She won't hang out with him but will resent me and that might essentially push her away from me and cause her to have even MORE feelings for him.

I love my SO and I trust her but I just hate this whole scenario. Is there anything I can do to prevent my fears from becoming a reality?
<bot>: My SO is hanging out with a new guy friend I know she is attracted to and I can't do anything about it.