morten -

that is enough to seriously impact YOU. there is lots of debate and differing theories about what affects our sexual identities - but events like you described are more than enough to cause emotional and psychological complications - if not all-out trauma. you sound like you feel the need to explore this further - it is worth the effort to try to understand more clearly. i'd suggest reading some of the reccommended books and articles on the home page and seeing a qualified therappist.
and of couse - chatting with others on the MS forums is often helpful, too.

Lee
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"That you are here - that life exists, and identity; that the powerful play goes on and you may contribute a verse. . . What will your verse be?" Robin Williams as John Keating in "Dead Poets Society"