I do not deny anything. These are just the facts that does exist in the game : Garrus did fall in love with Tali. Tali did fall in love with Garrus.
Turians and Quarians were the only sapient dextro-protein alien in the galaxy. In that aspect, they are biologically-compatible. Even if Tali may get sick from Garrus' germs but they could lip lock for as long as they wanted. Did you know what it feels like to have a constant allergy reactions? Risking death due to an anaphylactic shock kinda ruined the believability in my department. And I have romanced Garrus but I am still immune to his charms. Sorry. Still not my cup of tea and my FemShep deserved better. Plus, I was surprised with the amount of trying to get out of the relationship dialogues with him in both ME2 and ME3.
You saw my preference for Kaidan and stated with "I hate him and killed him with pleasure on Virmire" and yet you ranted that I was being mean because I had no problem having Garrus killed or absent in my trilogy. FYI, the biggest lie in the game was the fact that there is Shepard without Vakarian. He does not contribute to EMS at all. His presence doesn't affect the Genophage arc. His lack of presence actually improved Liara and Traynor's romance. His combat abilities doesn't make him a good support especially in high difficulties. Either way, resolving Saleon and Sidonis wasn't even required to make him survive through the Omega-4 relay. And even unloyal, he still behave the same in ME3. Doesn't make a difference really... unlike certain squadmates who still die in ME3 if they survive ME2 being unloyal.
Thane's death actually have more impact in the main narrative than Garrus. With Thane, Kirrahe or the Councillor could die, if the later die, Udina could fabricate that Shepard killed the Councillor so that VS could shoot you. You still lose a lot of war asset without Thane.
ok let's clear things once for good
:
1/ it's perfectly fine if you don't like Garrus~ believe me I'm not trying to make you like him, we had that other discussion on MEA where I clearly saw you don't like him that much (still need to compare the french and english voices!). Again it's FINE... And about Kaidan, I'm really sorry (really, I am), I just told that because I really don't like him but it was certainly not against you or anything. Also the game ask you to chose between him and Ashley, you have no other option when you actually can save everybody on ME2.
Please read my first post here : we all have different tastes and it's totally subjective. Nobody here is right or wrong, it's just a discussion about what we like or not, and comparing facts. We clearly don't see Garrus and Kaidan the same ways.
2/ about the tali/garrus thing, you see that a different way than I am because, in my game, it never happened and tali is actually perfectly normal with me or Garrus. She's a very good friend, as usual, and never ever asked anything about Garrus. And when they talk, they just talk like normal friends. And think about it, it's just natural. Garrus is Shepard's boyfriend, period. She just lives her life on her side. What I even find hilarous is that she told me to be careful when Dr Michel gave him dextro chocolate (and I'm pretty sure Dr Michel really like Garrus since ME1 if you want to know
).
What you have on your main game is not what I have on mine, you should know about that since you tried the romance too ~ so you see, both of us are right.
I love my romance and you're also free to like the other side when both are unromanced and can be together in the end of ME3.
People always argue for those kind of stuff, I don't. This is 2 differents stories, you like yours, I like mine. The only thing I told you is that you seem to totally deny all the good things in the shepard/garrus romance because (now I know) you tried and you didn't like it and have a totally different vision than mine. Its ok, I can hear everything but I don't have to agree with your point of view ~
3/ Yes I know about allergies and I even could write a book about them if you really want to know. I had to go to hospital under intravenous infusion because I could have died. Guess what ? I won't let those kind of stuff ruin my life for a second and I always find a way to workaround the problem, this is the kind of person I am
Back on game : this allergy problem is not only for turian, it's also concerning quarians and drell (and they are not dextro). Mordin says it could happen, but not it will happen for sure. Considering what I see on the game, my shepard is just perfectly fine and never needed to have an intravenous infusion like me 
I watched the other romances (tali, thane) on Youtube and it seems everbody's just fine. Shepard is so immortal 
So I just hope I'm clear with everything here, also english is not my native langage, I do my best to find the best words for what I'm trying to say, I hope it's alright.
You don't like Garrus as a character/romance but I love him and it's fine, same goes for you loving Kaidan and me disliking him (sorry again if I hurt you about this)... As long as we both had fun with our own games, it's alright even if we never agree on many things, don't you think ?