while i can say from personal experience that losing weight can be hard for one to do in a mental standpoint of view..in a logical point of view its not all that hard. your output must be more than ur input. simple as that. i use to be 5'3 and 180 lbs. ok im a guy and thats short as hell and fat as hell. now im 5'8 and 164 lbs. before u raise to much hell about this know this much....less than four months ago i was 5'8 185 lbs. i just put my foot down and said im going to do this. i increased my output and lowered my input. try to find friends that like to do things such as volleyball. that dont try to hard. the most important thing u must know about working out is to......HAVE FUN. i absolutely HATE to work out. but im lucky enough to have friends that just like to play around with sports. while this makes it fun it allows me to push my self harder and harder to get into better shape while no being judged about what im doing. may or may not help you in ur current situation but thought i would just toss it out there.

while this might be a personal opinion i feel like guys cant be friends with an ex. i mean really. guys.....look at it from an objective point of view.. deep down u still want something from her. be it sex or just the closeness that u once shared. u still want something. face it. u were attracted to her beyond the point of friendship. once past that point there is no going back. not that there is anything wrong with that. lets face it....if an ex called me up and needed help i would be the first one there. but that has NOTHING to do with friendship. i would do that for a stranger just as quick as for an ex. but then again it may be a personal opinion.
just figured i would weigh in my two cents.