Commentary for Kiddushin 116:15
מאי שנא הכא דקתני האומר לחבירו
[BUT IF HE DECLARES, BE THOU BETROTHED UNTO ME [FROM NOW AND AFTER THIRTY DAYS,'<span class="x" onmousemove="('comment',' As though it were a long ceremony, commencing immediately but requiring thirty days for its completion.');"><sup>17</sup></span> AND ANOTHER COMES AND BETROTHS HER WITHIN THE THIRTY DAYS, SHE IS BETROTHED AND NOT BETROTHED [TO BOTH]:<span class="x" onmousemove="('comment',' I.e., she is not free from either, nor may she live with either; v. p. 47. n. 10.');"><sup>18</sup></span> AN ISRAELITE'S DAUGHTER [THUS BETROTHED] TO A PRIEST, OR A PRIEST'S DAUGHTER TO AN ISRAELITE, MAY NOT EAT TERUMAH.<span class="x" onmousemove="('comment',' Her status being undetermined.');"><sup>19</sup></span> <big><b>GEMARA: </b></big>IF HE SAYS TO HIS NEIGHBOUR'A Tanna taught: What he did is done, but that he has behaved toward him as a cheat. And our Tanna?<span class="x" onmousemove="('comment',' Does he too not condemn him?');"><sup>20</sup></span> - When he states: AND HE GOES,<span class="x" onmousemove="('comment',' Lit., 'AND HE WENT'.');"><sup>21</sup></span> he indeed means, He goes in cheating fashion. Why is it taught here, IF HE SAYS TO HIS NEIGHBOUR,
Daf Shevui to Kiddushin
Here it teaches “neighbor” to let us know that even though one does not generally rely on neighbors for such types of favors, even so, the neighbor who betroths the woman to himself is still considered deceptive.