Most certainly it was very astute of Popa Bar Abba to reckon that with the widespread Shidduch-obesity problem that it is undeniable what the OP was referring to. However I must fundamentally disagree with him. With the tzaros going on in klal yisrael this is no time to be playing games with our futures. If a girl b’derech hateva wants to get married she must be a size 2 or smaller. To ignore this fact is a chisaron in hishtadlus and could be the aveira itself which will lead to her becoming an aguna. Thare is, however, a point which is vital to this discussion and shouldn’t be taken lightly. A girl must not under any circumstances “do experiments” with her dates. By that I mean do not go out with guys thinking “maybe they like fat girls” or maybe they will “see past that”. If a girl of this nature is not engaged by her 20th birthday it is only prudent that she go through with this procedure for in today’s day and age if she is not married by 21 I’d venture to say she is nigh unto doomed.
Hatzlocho. Don’t let anyone talk you out of your avodas Hashem.
Mod’s Note: The above poster has been drinking heavily this evening. Thankfully he is on the CR rather than driving.