i def think the T makes a differance.they are human and all are very differnt from one onother and they all bring a part of them to the relationship.this i think will affect how you react to them and T.body language,attitude,mannerisms.etc...a lot about a T can affect the relationship in a great way or in a not so good way.i think this is what is meant when weather or not it is a good fit is asked.i may be wrong but this is my 2C