>>81765891not really, no.
unconditional love and love that you develop over a long period of time will last a lifetime, yes, but it won't necessarily be a deep experience of love. human emotions ebb and flow, and once you get used to a relationship or experience your emotions stabilize. that other gay anon set himself up for failure by assuming (fresh) love needs to die quickly with each new person, but deep emotions follow deeply stimulating or engaging experiences, its not the same as the vague motivating force that makes you "owe" something to yourself or anyone else after the experience or in anticipation of it.
Once you have a good social circle, a committed partner, and children, yes you can feel a deep sense of belonging, support, love, etc. nearly all the time, but that still requires extraordinary care and balance to maintain. people who feel deep positive emotions also experience deep negative ones.