your situation is among the "hopefully obvious" exceptions. if you felt that your sexual feelings for her would eventually disappear at a specific time, you would have communicated that to her as early on as the feelings became relevant (i mean, practically - as in, she wanted to stay with you presumably further than that time). she would either decide to accept that potentiality as you convey it or... whatever else. and you can't assume that she knows about that potentiality as different from the normative mindset unless she understands understands various things about sexuality (fairly simple things, mind you).

in my case, thankfully, it's not an issue. i understand the set of conditions i can work with; you understand yours. it's different for every person. the key stress is on communication to come to a mutual understanding about how you see each other and how you can each potentially fulfill the wants and desires of the other among many other factors and mutually create what that looks like for a relationship.

of course people with a more specific set of conditions may have a harder time of it, or have to think outside the box somewhat more.

i'm not making any statements as to what you or anyone SHOULD do (aside from the obvious ethical parts).

~ rainbow