When I felt that way, I just told them straight in words what exactly I found helpful. I never felt close to my first T but did have a good connection with the 2nd for a while, in most sessions. I told him just that and described what exactly made me feel that way, including when I thought it was some sort of transference. I was never afraid that they would think I am too attached as I wasn't really attached, more just liked the 2nd T and enjoyed the interactions. I'm not someone who gets flowery and very lovey-dovey even with people in ordinary life that are really close to me and prefer to express my feelings in simple, more practical ways and in actions. I also usually feel that is there is a good connection with someone, it is very obvious and no need to talk about it much.