If a guy asked me to live with him just to make a point of his being serious, I will dump him. The issue is not about if he is serious or not but he's after the sex part before marriage. I believe that if a man truly loves a woman, he will never ever make such proposal. His respect for the woman he loves and to protect her from scrutiny of the community will rule him more than his raging hormones.
Based on the conversation, he cant be trusted. He has a lot of alibis why he cant use YM. Though that could be possible since some sites are banned in a workplace...but think about it, why is YM blocked instead of FB? In the office FB is blocked during office hours coz it can take a lot of time since there are many interesting applications on that site. In most workplace, YM and other messengers are not blocked coz it's a simple means to converse with your colleagues when u have an important thing to say to them instead of going to them personally. So he's reason that YM is blocked is pretty lame.
