Ultimatums.
I don't like them.  I don't like anything about them.  I don't live giving them, and I most certainly do not like receiving them.  Never once have I had even a remotely good, even "okay", experience with them.  Not any of the ones that I have received or the couple that I have given turned out well, and I honestly believe that I made the wrong decision in every single one of those cases.  I don't like them. So, why am I telling you this?  Because I know, I know that they are not fair, and I am truly sorry for that.  And I am not going to make you choose anytime soon, but eventually, eventually, if things "work out", then you will have to choose one or the other.