I need advice... please

Hi everyone, I have been a lurking around here for yrs now and have only written in several times about my non existing sex life with my boyfriend of 7 yrs. I can count the times we've had sex with my two hands in the last 3 yrs and it wasn't very good or we never got that far. My relationship with him is that of a roommate, brother, father defiantly not a lover, he always tells me he loves me and is wonderful with me. I, like most of you, have tried several approaches, techniques, speeches, etc. over the yrs with no change. He's a wonderful man blah, blah, blah (he really is but you all get the point) that is why I'm still here. We have no children (since you have to have sex for that to happen) but we have alot of things invested together after 7 yrs, we own a home together I work with him in his business, stuff like that.
Anywho.... I am now faced with a dilemma, my ex-boyfriend has come back into my life after 10 yrs thanks to Facebook. He was the love of my life, we had passion like I've never had again, we were very young and it did not work out after 5 yrs of on and off. So he finds me on FB and tells me that he has never felt that again with anyone else and asks me if i have (I have not). That he still loves me and wants to be with me again. Well fast forward 5 months to now and we chat on FB every other day or so and I now find myself thinking of him all the time and tempted to see him and see if that feeling is still there, I defiantly feel it when we speak over the phone (which has only happened twice). Last night i almost broke down and called him to meet me somewhere but I didn't, I'm so scared to get caught. BTW my ex is not exactly someone who I'd leave my current financial situation for (he's currently unemployed bc of the recession) and lives with his mother (yikes)
I don't know what to do! Please give me some advice, am I suppose to just ignore this yearning I have for love, passion and attention from the male species..... I'm like a caged tiger over here! BTW I'm 33 my "husband" is 45 and my ex is also 33 in case you all where wondering.