Hi
for me it sound like your sexual and romantic orientation is diffrent from each other.
we general feel attracted in diffrent ways, for diffrent people and in diffrent degrees.
If a guy is attacked to women sexually and also want to be romantic with her, fall in love and so, he is
hetrosexual and hetroromantic, (a person feel sexual attraction and romantic attraction toward the opposite gender)
for some people what they romantically is into is not what they are into sexually exemple, a girl who can be in love with either gender but only find sexual attraction toward women (biromantic + homosexual)
it pretty confussing for many, but I belive most of it is due to the fact that we in sociaty dont think people can be flexible.

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About the penetration thing I kinda get what you mean. I personally like penetration but I also had issue with it. I think this is rather typical problem linked to masculinity where penetration is seam as.. well something rater shamefull, taking that + some dyshoria can get quit troublesome.
I dont know how you feel about bottom dyshoria, I personally dont have bottom dyshoria but just what I decribe as "sociaty dyshoria" on how people view me. I dont mind penetration with someone which dont make me feel like sh*t and limit me to my genetails, but it had taken some time to both admit it for myself and find someone trustworthy to try it out.
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